Home / 20,626.20-28,475.82-14,262.12

Finding the Fourth Proportional to 20,626.20, 28,475.82 and 14,262.12

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Solution

The fourth proportional to 20,626.20, 28,475.82 and 14,262.12 is: 19,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.20 : 28,475.82 = 14,262.12 : x
  2. Step 2: Convert to fraction form
    20,626.20/28,475.82 = 14,262.12/x
  3. Step 3: Cross multiply
    20,626.20x = 28,475.82 × 14,262.12
  4. Step 4: Simplify right side
    20,626.20x = 406,125,561.94
  5. Step 5: Solve for x
    x = 406,125,561.94/20,626.20
  6. Step 6: Final answer
    x = 19,689.79

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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.