Home / 28,431.68-42,635.15-15,101.73

Finding the Fourth Proportional to 28,431.68, 42,635.15 and 15,101.73

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Solution

The fourth proportional to 28,431.68, 42,635.15 and 15,101.73 is: 22,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431.68 : 42,635.15 = 15,101.73 : x
  2. Step 2: Convert to fraction form
    28,431.68/42,635.15 = 15,101.73/x
  3. Step 3: Cross multiply
    28,431.68x = 42,635.15 × 15,101.73
  4. Step 4: Simplify right side
    28,431.68x = 643,864,504.93
  5. Step 5: Solve for x
    x = 643,864,504.93/28,431.68
  6. Step 6: Final answer
    x = 22,646.03

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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.