Home / 26,489.32-39,687.27-13,981.78

Finding the Fourth Proportional to 26,489.32, 39,687.27 and 13,981.78

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Solution

The fourth proportional to 26,489.32, 39,687.27 and 13,981.78 is: 20,948.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,489.32 : 39,687.27 = 13,981.78 : x
  2. Step 2: Convert to fraction form
    26,489.32/39,687.27 = 13,981.78/x
  3. Step 3: Cross multiply
    26,489.32x = 39,687.27 × 13,981.78
  4. Step 4: Simplify right side
    26,489.32x = 554,898,677.94
  5. Step 5: Solve for x
    x = 554,898,677.94/26,489.32
  6. Step 6: Final answer
    x = 20,948.02

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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.