Home / 38,490.86-57,714.25-11,829.92

Finding the Fourth Proportional to 38,490.86, 57,714.25 and 11,829.92

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Solution

The fourth proportional to 38,490.86, 57,714.25 and 11,829.92 is: 17,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.86 : 57,714.25 = 11,829.92 : x
  2. Step 2: Convert to fraction form
    38,490.86/57,714.25 = 11,829.92/x
  3. Step 3: Cross multiply
    38,490.86x = 57,714.25 × 11,829.92
  4. Step 4: Simplify right side
    38,490.86x = 682,754,631.12
  5. Step 5: Solve for x
    x = 682,754,631.12/38,490.86
  6. Step 6: Final answer
    x = 17,738.10

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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.