Home / 38,153.43-52,651.42-21,157.71

Finding the Fourth Proportional to 38,153.43, 52,651.42 and 21,157.71

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Solution

The fourth proportional to 38,153.43, 52,651.42 and 21,157.71 is: 29,197.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,153.43 : 52,651.42 = 21,157.71 : x
  2. Step 2: Convert to fraction form
    38,153.43/52,651.42 = 21,157.71/x
  3. Step 3: Cross multiply
    38,153.43x = 52,651.42 × 21,157.71
  4. Step 4: Simplify right side
    38,153.43x = 1,113,983,225.11
  5. Step 5: Solve for x
    x = 1,113,983,225.11/38,153.43
  6. Step 6: Final answer
    x = 29,197.46

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Half scale
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Double scale
Find fourth proportional to 38,154.43, 52,652.80 and 21,158.71
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.