Home / 28,171.80-42,204.24-15,030.36

Finding the Fourth Proportional to 28,171.80, 42,204.24 and 15,030.36

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Solution

The fourth proportional to 28,171.80, 42,204.24 and 15,030.36 is: 22,517.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.80 : 42,204.24 = 15,030.36 : x
  2. Step 2: Convert to fraction form
    28,171.80/42,204.24 = 15,030.36/x
  3. Step 3: Cross multiply
    28,171.80x = 42,204.24 × 15,030.36
  4. Step 4: Simplify right side
    28,171.80x = 634,344,920.73
  5. Step 5: Solve for x
    x = 634,344,920.73/28,171.80
  6. Step 6: Final answer
    x = 22,517.02

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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.