Home / 25,490.46-38,257.56-18,929.46

Finding the Fourth Proportional to 25,490.46, 38,257.56 and 18,929.46

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Solution

The fourth proportional to 25,490.46, 38,257.56 and 18,929.46 is: 28,410.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,490.46 : 38,257.56 = 18,929.46 : x
  2. Step 2: Convert to fraction form
    25,490.46/38,257.56 = 18,929.46/x
  3. Step 3: Cross multiply
    25,490.46x = 38,257.56 × 18,929.46
  4. Step 4: Simplify right side
    25,490.46x = 724,194,951.72
  5. Step 5: Solve for x
    x = 724,194,951.72/25,490.46
  6. Step 6: Final answer
    x = 28,410.43

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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.