Home / 38,153.18-52,650.41-21,157.15

Finding the Fourth Proportional to 38,153.18, 52,650.41 and 21,157.15

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Solution

The fourth proportional to 38,153.18, 52,650.41 and 21,157.15 is: 29,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,153.18 : 52,650.41 = 21,157.15 : x
  2. Step 2: Convert to fraction form
    38,153.18/52,650.41 = 21,157.15/x
  3. Step 3: Cross multiply
    38,153.18x = 52,650.41 × 21,157.15
  4. Step 4: Simplify right side
    38,153.18x = 1,113,932,483.24
  5. Step 5: Solve for x
    x = 1,113,932,483.24/38,153.18
  6. Step 6: Final answer
    x = 29,196.32

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Half scale
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Double scale
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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.