Home / 28,531.03-42,814.91-15,392.47

Finding the Fourth Proportional to 28,531.03, 42,814.91 and 15,392.47

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Solution

The fourth proportional to 28,531.03, 42,814.91 and 15,392.47 is: 23,098.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.03 : 42,814.91 = 15,392.47 : x
  2. Step 2: Convert to fraction form
    28,531.03/42,814.91 = 15,392.47/x
  3. Step 3: Cross multiply
    28,531.03x = 42,814.91 × 15,392.47
  4. Step 4: Simplify right side
    28,531.03x = 659,027,217.73
  5. Step 5: Solve for x
    x = 659,027,217.73/28,531.03
  6. Step 6: Final answer
    x = 23,098.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.