Home / 28,456.68-42,685.65-7,397.55

Finding the Fourth Proportional to 28,456.68, 42,685.65 and 7,397.55

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Solution

The fourth proportional to 28,456.68, 42,685.65 and 7,397.55 is: 11,096.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,456.68 : 42,685.65 = 7,397.55 : x
  2. Step 2: Convert to fraction form
    28,456.68/42,685.65 = 7,397.55/x
  3. Step 3: Cross multiply
    28,456.68x = 42,685.65 × 7,397.55
  4. Step 4: Simplify right side
    28,456.68x = 315,769,230.16
  5. Step 5: Solve for x
    x = 315,769,230.16/28,456.68
  6. Step 6: Final answer
    x = 11,096.49

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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.