Home / 20,294.19-28,023.80-12,753.59

Finding the Fourth Proportional to 20,294.19, 28,023.80 and 12,753.59

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Solution

The fourth proportional to 20,294.19, 28,023.80 and 12,753.59 is: 17,611.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.19 : 28,023.80 = 12,753.59 : x
  2. Step 2: Convert to fraction form
    20,294.19/28,023.80 = 12,753.59/x
  3. Step 3: Cross multiply
    20,294.19x = 28,023.80 × 12,753.59
  4. Step 4: Simplify right side
    20,294.19x = 357,403,851.56
  5. Step 5: Solve for x
    x = 357,403,851.56/20,294.19
  6. Step 6: Final answer
    x = 17,611.14

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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.