Home / 26,286.73-39,397.28-13,142.86

Finding the Fourth Proportional to 26,286.73, 39,397.28 and 13,142.86

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Solution

The fourth proportional to 26,286.73, 39,397.28 and 13,142.86 is: 19,697.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,286.73 : 39,397.28 = 13,142.86 : x
  2. Step 2: Convert to fraction form
    26,286.73/39,397.28 = 13,142.86/x
  3. Step 3: Cross multiply
    26,286.73x = 39,397.28 × 13,142.86
  4. Step 4: Simplify right side
    26,286.73x = 517,792,808.18
  5. Step 5: Solve for x
    x = 517,792,808.18/26,286.73
  6. Step 6: Final answer
    x = 19,697.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.