Home / 38,085.20-52,557.44-21,318.20

Finding the Fourth Proportional to 38,085.20, 52,557.44 and 21,318.20

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Solution

The fourth proportional to 38,085.20, 52,557.44 and 21,318.20 is: 29,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,085.20 : 52,557.44 = 21,318.20 : x
  2. Step 2: Convert to fraction form
    38,085.20/52,557.44 = 21,318.20/x
  3. Step 3: Cross multiply
    38,085.20x = 52,557.44 × 21,318.20
  4. Step 4: Simplify right side
    38,085.20x = 1,120,429,845.12
  5. Step 5: Solve for x
    x = 1,120,429,845.12/38,085.20
  6. Step 6: Final answer
    x = 29,419.04

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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.