Home / 28,870.27-43,306.61-9,148.39

Finding the Fourth Proportional to 28,870.27, 43,306.61 and 9,148.39

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Solution

The fourth proportional to 28,870.27, 43,306.61 and 9,148.39 is: 13,722.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.27 : 43,306.61 = 9,148.39 : x
  2. Step 2: Convert to fraction form
    28,870.27/43,306.61 = 9,148.39/x
  3. Step 3: Cross multiply
    28,870.27x = 43,306.61 × 9,148.39
  4. Step 4: Simplify right side
    28,870.27x = 396,185,757.86
  5. Step 5: Solve for x
    x = 396,185,757.86/28,870.27
  6. Step 6: Final answer
    x = 13,722.97

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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.