Home / 28,306.62-42,456.69-7,531.74

Finding the Fourth Proportional to 28,306.62, 42,456.69 and 7,531.74

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Solution

The fourth proportional to 28,306.62, 42,456.69 and 7,531.74 is: 11,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.62 : 42,456.69 = 7,531.74 : x
  2. Step 2: Convert to fraction form
    28,306.62/42,456.69 = 7,531.74/x
  3. Step 3: Cross multiply
    28,306.62x = 42,456.69 × 7,531.74
  4. Step 4: Simplify right side
    28,306.62x = 319,772,750.34
  5. Step 5: Solve for x
    x = 319,772,750.34/28,306.62
  6. Step 6: Final answer
    x = 11,296.75

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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.