Home / 28,474.48-42,691.20-17,378.56

Finding the Fourth Proportional to 28,474.48, 42,691.20 and 17,378.56

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Solution

The fourth proportional to 28,474.48, 42,691.20 and 17,378.56 is: 26,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.48 : 42,691.20 = 17,378.56 : x
  2. Step 2: Convert to fraction form
    28,474.48/42,691.20 = 17,378.56/x
  3. Step 3: Cross multiply
    28,474.48x = 42,691.20 × 17,378.56
  4. Step 4: Simplify right side
    28,474.48x = 741,911,580.67
  5. Step 5: Solve for x
    x = 741,911,580.67/28,474.48
  6. Step 6: Final answer
    x = 26,055.32

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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.