Home / 38,390.34-57,573.90-13,425.74

Finding the Fourth Proportional to 38,390.34, 57,573.90 and 13,425.74

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Solution

The fourth proportional to 38,390.34, 57,573.90 and 13,425.74 is: 20,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,390.34 : 57,573.90 = 13,425.74 : x
  2. Step 2: Convert to fraction form
    38,390.34/57,573.90 = 13,425.74/x
  3. Step 3: Cross multiply
    38,390.34x = 57,573.90 × 13,425.74
  4. Step 4: Simplify right side
    38,390.34x = 772,972,212.19
  5. Step 5: Solve for x
    x = 772,972,212.19/38,390.34
  6. Step 6: Final answer
    x = 20,134.55

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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.