Home / 38,538.40-57,811.44-10,458.91

Finding the Fourth Proportional to 38,538.40, 57,811.44 and 10,458.91

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Solution

The fourth proportional to 38,538.40, 57,811.44 and 10,458.91 is: 15,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,538.40 : 57,811.44 = 10,458.91 : x
  2. Step 2: Convert to fraction form
    38,538.40/57,811.44 = 10,458.91/x
  3. Step 3: Cross multiply
    38,538.40x = 57,811.44 × 10,458.91
  4. Step 4: Simplify right side
    38,538.40x = 604,644,647.93
  5. Step 5: Solve for x
    x = 604,644,647.93/38,538.40
  6. Step 6: Final answer
    x = 15,689.41

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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.