Home / 15,885.33-23,781.17-13,914.81

Finding the Fourth Proportional to 15,885.33, 23,781.17 and 13,914.81

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Solution

The fourth proportional to 15,885.33, 23,781.17 and 13,914.81 is: 20,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,885.33 : 23,781.17 = 13,914.81 : x
  2. Step 2: Convert to fraction form
    15,885.33/23,781.17 = 13,914.81/x
  3. Step 3: Cross multiply
    15,885.33x = 23,781.17 × 13,914.81
  4. Step 4: Simplify right side
    15,885.33x = 330,910,496.91
  5. Step 5: Solve for x
    x = 330,910,496.91/15,885.33
  6. Step 6: Final answer
    x = 20,831.21

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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.