Home / 31,455.23-47,186.11-10,102.55

Finding the Fourth Proportional to 31,455.23, 47,186.11 and 10,102.55

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Solution

The fourth proportional to 31,455.23, 47,186.11 and 10,102.55 is: 15,154.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.23 : 47,186.11 = 10,102.55 : x
  2. Step 2: Convert to fraction form
    31,455.23/47,186.11 = 10,102.55/x
  3. Step 3: Cross multiply
    31,455.23x = 47,186.11 × 10,102.55
  4. Step 4: Simplify right side
    31,455.23x = 476,699,799.65
  5. Step 5: Solve for x
    x = 476,699,799.65/31,455.23
  6. Step 6: Final answer
    x = 15,154.87

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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.