Home / 28,605.20-39,475.10-17,427.20

Finding the Fourth Proportional to 28,605.20, 39,475.10 and 17,427.20

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Solution

The fourth proportional to 28,605.20, 39,475.10 and 17,427.20 is: 24,049.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,605.20 : 39,475.10 = 17,427.20 : x
  2. Step 2: Convert to fraction form
    28,605.20/39,475.10 = 17,427.20/x
  3. Step 3: Cross multiply
    28,605.20x = 39,475.10 × 17,427.20
  4. Step 4: Simplify right side
    28,605.20x = 687,940,462.72
  5. Step 5: Solve for x
    x = 687,940,462.72/28,605.20
  6. Step 6: Final answer
    x = 24,049.49

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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.