Home / 28,344.74-39,098.09-20,397.42

Finding the Fourth Proportional to 28,344.74, 39,098.09 and 20,397.42

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Solution

The fourth proportional to 28,344.74, 39,098.09 and 20,397.42 is: 28,135.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.74 : 39,098.09 = 20,397.42 : x
  2. Step 2: Convert to fraction form
    28,344.74/39,098.09 = 20,397.42/x
  3. Step 3: Cross multiply
    28,344.74x = 39,098.09 × 20,397.42
  4. Step 4: Simplify right side
    28,344.74x = 797,500,213.92
  5. Step 5: Solve for x
    x = 797,500,213.92/28,344.74
  6. Step 6: Final answer
    x = 28,135.74

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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.