Home / 25,869.88-38,785.16-13,381.96

Finding the Fourth Proportional to 25,869.88, 38,785.16 and 13,381.96

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Solution

The fourth proportional to 25,869.88, 38,785.16 and 13,381.96 is: 20,062.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,869.88 : 38,785.16 = 13,381.96 : x
  2. Step 2: Convert to fraction form
    25,869.88/38,785.16 = 13,381.96/x
  3. Step 3: Cross multiply
    25,869.88x = 38,785.16 × 13,381.96
  4. Step 4: Simplify right side
    25,869.88x = 519,021,459.71
  5. Step 5: Solve for x
    x = 519,021,459.71/25,869.88
  6. Step 6: Final answer
    x = 20,062.77

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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.