Home / 22,781.34-31,432.32-13,344.84

Finding the Fourth Proportional to 22,781.34, 31,432.32 and 13,344.84

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Solution

The fourth proportional to 22,781.34, 31,432.32 and 13,344.84 is: 18,412.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,781.34 : 31,432.32 = 13,344.84 : x
  2. Step 2: Convert to fraction form
    22,781.34/31,432.32 = 13,344.84/x
  3. Step 3: Cross multiply
    22,781.34x = 31,432.32 × 13,344.84
  4. Step 4: Simplify right side
    22,781.34x = 419,459,281.23
  5. Step 5: Solve for x
    x = 419,459,281.23/22,781.34
  6. Step 6: Final answer
    x = 18,412.41

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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.