Home / 51,531.87-71,097.84-28,867.80

Finding the Fourth Proportional to 51,531.87, 71,097.84 and 28,867.80

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Solution

The fourth proportional to 51,531.87, 71,097.84 and 28,867.80 is: 39,828.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,531.87 : 71,097.84 = 28,867.80 : x
  2. Step 2: Convert to fraction form
    51,531.87/71,097.84 = 28,867.80/x
  3. Step 3: Cross multiply
    51,531.87x = 71,097.84 × 28,867.80
  4. Step 4: Simplify right side
    51,531.87x = 2,052,438,225.55
  5. Step 5: Solve for x
    x = 2,052,438,225.55/51,531.87
  6. Step 6: Final answer
    x = 39,828.52

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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.