Home / 51,515.28-71,092.62-28,854.18

Finding the Fourth Proportional to 51,515.28, 71,092.62 and 28,854.18

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Solution

The fourth proportional to 51,515.28, 71,092.62 and 28,854.18 is: 39,819.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,515.28 : 71,092.62 = 28,854.18 : x
  2. Step 2: Convert to fraction form
    51,515.28/71,092.62 = 28,854.18/x
  3. Step 3: Cross multiply
    51,515.28x = 71,092.62 × 28,854.18
  4. Step 4: Simplify right side
    51,515.28x = 2,051,319,254.15
  5. Step 5: Solve for x
    x = 2,051,319,254.15/51,515.28
  6. Step 6: Final answer
    x = 39,819.63

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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.