Home / 38,153.40-52,651.69-21,160.24

Finding the Fourth Proportional to 38,153.40, 52,651.69 and 21,160.24

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Solution

The fourth proportional to 38,153.40, 52,651.69 and 21,160.24 is: 29,201.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,153.40 : 52,651.69 = 21,160.24 : x
  2. Step 2: Convert to fraction form
    38,153.40/52,651.69 = 21,160.24/x
  3. Step 3: Cross multiply
    38,153.40x = 52,651.69 × 21,160.24
  4. Step 4: Simplify right side
    38,153.40x = 1,114,122,396.81
  5. Step 5: Solve for x
    x = 1,114,122,396.81/38,153.40
  6. Step 6: Final answer
    x = 29,201.13

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Half scale
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Double scale
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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.