Home / 38,774.46-58,159.80-12,478.62

Finding the Fourth Proportional to 38,774.46, 58,159.80 and 12,478.62

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Solution

The fourth proportional to 38,774.46, 58,159.80 and 12,478.62 is: 18,717.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,774.46 : 58,159.80 = 12,478.62 : x
  2. Step 2: Convert to fraction form
    38,774.46/58,159.80 = 12,478.62/x
  3. Step 3: Cross multiply
    38,774.46x = 58,159.80 × 12,478.62
  4. Step 4: Simplify right side
    38,774.46x = 725,754,043.48
  5. Step 5: Solve for x
    x = 725,754,043.48/38,774.46
  6. Step 6: Final answer
    x = 18,717.32

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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.