Home / 28,125.47-42,139.59-14,778.62

Finding the Fourth Proportional to 28,125.47, 42,139.59 and 14,778.62

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Solution

The fourth proportional to 28,125.47, 42,139.59 and 14,778.62 is: 22,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.47 : 42,139.59 = 14,778.62 : x
  2. Step 2: Convert to fraction form
    28,125.47/42,139.59 = 14,778.62/x
  3. Step 3: Cross multiply
    28,125.47x = 42,139.59 × 14,778.62
  4. Step 4: Simplify right side
    28,125.47x = 622,764,776.87
  5. Step 5: Solve for x
    x = 622,764,776.87/28,125.47
  6. Step 6: Final answer
    x = 22,142.38

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1.5x scale

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.