Home / 38,142.08-52,639.17-21,151.64

Finding the Fourth Proportional to 38,142.08, 52,639.17 and 21,151.64

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Solution

The fourth proportional to 38,142.08, 52,639.17 and 21,151.64 is: 29,190.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142.08 : 52,639.17 = 21,151.64 : x
  2. Step 2: Convert to fraction form
    38,142.08/52,639.17 = 21,151.64/x
  3. Step 3: Cross multiply
    38,142.08x = 52,639.17 × 21,151.64
  4. Step 4: Simplify right side
    38,142.08x = 1,113,404,773.74
  5. Step 5: Solve for x
    x = 1,113,404,773.74/38,142.08
  6. Step 6: Final answer
    x = 29,190.99

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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.