Home / 28,139.38-42,127.05-24,379.57

Finding the Fourth Proportional to 28,139.38, 42,127.05 and 24,379.57

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Solution

The fourth proportional to 28,139.38, 42,127.05 and 24,379.57 is: 36,498.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139.38 : 42,127.05 = 24,379.57 : x
  2. Step 2: Convert to fraction form
    28,139.38/42,127.05 = 24,379.57/x
  3. Step 3: Cross multiply
    28,139.38x = 42,127.05 × 24,379.57
  4. Step 4: Simplify right side
    28,139.38x = 1,027,039,364.37
  5. Step 5: Solve for x
    x = 1,027,039,364.37/28,139.38
  6. Step 6: Final answer
    x = 36,498.29

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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.