Home / 38,347.83-57,449.34-19,639.71

Finding the Fourth Proportional to 38,347.83, 57,449.34 and 19,639.71

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Solution

The fourth proportional to 38,347.83, 57,449.34 and 19,639.71 is: 29,422.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,347.83 : 57,449.34 = 19,639.71 : x
  2. Step 2: Convert to fraction form
    38,347.83/57,449.34 = 19,639.71/x
  3. Step 3: Cross multiply
    38,347.83x = 57,449.34 × 19,639.71
  4. Step 4: Simplify right side
    38,347.83x = 1,128,288,377.29
  5. Step 5: Solve for x
    x = 1,128,288,377.29/38,347.83
  6. Step 6: Final answer
    x = 29,422.48

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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.