Home / 20,677.73-28,543.38-14,659.43

Finding the Fourth Proportional to 20,677.73, 28,543.38 and 14,659.43

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Solution

The fourth proportional to 20,677.73, 28,543.38 and 14,659.43 is: 20,235.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.73 : 28,543.38 = 14,659.43 : x
  2. Step 2: Convert to fraction form
    20,677.73/28,543.38 = 14,659.43/x
  3. Step 3: Cross multiply
    20,677.73x = 28,543.38 × 14,659.43
  4. Step 4: Simplify right side
    20,677.73x = 418,429,681.07
  5. Step 5: Solve for x
    x = 418,429,681.07/20,677.73
  6. Step 6: Final answer
    x = 20,235.76

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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.