Home / 51,635.87-71,251.71-28,970.15

Finding the Fourth Proportional to 51,635.87, 71,251.71 and 28,970.15

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Solution

The fourth proportional to 51,635.87, 71,251.71 and 28,970.15 is: 39,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,635.87 : 71,251.71 = 28,970.15 : x
  2. Step 2: Convert to fraction form
    51,635.87/71,251.71 = 28,970.15/x
  3. Step 3: Cross multiply
    51,635.87x = 71,251.71 × 28,970.15
  4. Step 4: Simplify right side
    51,635.87x = 2,064,172,442.62
  5. Step 5: Solve for x
    x = 2,064,172,442.62/51,635.87
  6. Step 6: Final answer
    x = 39,975.55

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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.