Home / 22,781.63-34,156.05-13,998.40

Finding the Fourth Proportional to 22,781.63, 34,156.05 and 13,998.40

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Solution

The fourth proportional to 22,781.63, 34,156.05 and 13,998.40 is: 20,987.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,781.63 : 34,156.05 = 13,998.40 : x
  2. Step 2: Convert to fraction form
    22,781.63/34,156.05 = 13,998.40/x
  3. Step 3: Cross multiply
    22,781.63x = 34,156.05 × 13,998.40
  4. Step 4: Simplify right side
    22,781.63x = 478,129,912.44
  5. Step 5: Solve for x
    x = 478,129,912.44/22,781.63
  6. Step 6: Final answer
    x = 20,987.52

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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.