Home / 42,255.62-58,302.90-28,854.78

Finding the Fourth Proportional to 42,255.62, 58,302.90 and 28,854.78

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Solution

The fourth proportional to 42,255.62, 58,302.90 and 28,854.78 is: 39,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,255.62 : 58,302.90 = 28,854.78 : x
  2. Step 2: Convert to fraction form
    42,255.62/58,302.90 = 28,854.78/x
  3. Step 3: Cross multiply
    42,255.62x = 58,302.90 × 28,854.78
  4. Step 4: Simplify right side
    42,255.62x = 1,682,317,352.86
  5. Step 5: Solve for x
    x = 1,682,317,352.86/42,255.62
  6. Step 6: Final answer
    x = 39,812.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.