Home / 22,782.13-34,156.80-13,998.90

Finding the Fourth Proportional to 22,782.13, 34,156.80 and 13,998.90

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Solution

The fourth proportional to 22,782.13, 34,156.80 and 13,998.90 is: 20,988.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,782.13 : 34,156.80 = 13,998.90 : x
  2. Step 2: Convert to fraction form
    22,782.13/34,156.80 = 13,998.90/x
  3. Step 3: Cross multiply
    22,782.13x = 34,156.80 × 13,998.90
  4. Step 4: Simplify right side
    22,782.13x = 478,157,472.13
  5. Step 5: Solve for x
    x = 478,157,472.13/22,782.13
  6. Step 6: Final answer
    x = 20,988.27

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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.