Home / 28,379.08-42,536.76-9,641.62

Finding the Fourth Proportional to 28,379.08, 42,536.76 and 9,641.62

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Solution

The fourth proportional to 28,379.08, 42,536.76 and 9,641.62 is: 14,451.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.08 : 42,536.76 = 9,641.62 : x
  2. Step 2: Convert to fraction form
    28,379.08/42,536.76 = 9,641.62/x
  3. Step 3: Cross multiply
    28,379.08x = 42,536.76 × 9,641.62
  4. Step 4: Simplify right side
    28,379.08x = 410,123,275.95
  5. Step 5: Solve for x
    x = 410,123,275.95/28,379.08
  6. Step 6: Final answer
    x = 14,451.61

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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.