Home / 38,785.31-58,174.71-15,405.47

Finding the Fourth Proportional to 38,785.31, 58,174.71 and 15,405.47

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Solution

The fourth proportional to 38,785.31, 58,174.71 and 15,405.47 is: 23,106.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,785.31 : 58,174.71 = 15,405.47 : x
  2. Step 2: Convert to fraction form
    38,785.31/58,174.71 = 15,405.47/x
  3. Step 3: Cross multiply
    38,785.31x = 58,174.71 × 15,405.47
  4. Step 4: Simplify right side
    38,785.31x = 896,208,749.66
  5. Step 5: Solve for x
    x = 896,208,749.66/38,785.31
  6. Step 6: Final answer
    x = 23,106.91

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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.