Home / 20,909.52-28,868.14-14,534.10

Finding the Fourth Proportional to 20,909.52, 28,868.14 and 14,534.10

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Solution

The fourth proportional to 20,909.52, 28,868.14 and 14,534.10 is: 20,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,909.52 : 28,868.14 = 14,534.10 : x
  2. Step 2: Convert to fraction form
    20,909.52/28,868.14 = 14,534.10/x
  3. Step 3: Cross multiply
    20,909.52x = 28,868.14 × 14,534.10
  4. Step 4: Simplify right side
    20,909.52x = 419,572,433.57
  5. Step 5: Solve for x
    x = 419,572,433.57/20,909.52
  6. Step 6: Final answer
    x = 20,066.10

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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.