Home / 40,823.50-61,239.12-15,865.47

Finding the Fourth Proportional to 40,823.50, 61,239.12 and 15,865.47

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Solution

The fourth proportional to 40,823.50, 61,239.12 and 15,865.47 is: 23,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,823.50 : 61,239.12 = 15,865.47 : x
  2. Step 2: Convert to fraction form
    40,823.50/61,239.12 = 15,865.47/x
  3. Step 3: Cross multiply
    40,823.50x = 61,239.12 × 15,865.47
  4. Step 4: Simplify right side
    40,823.50x = 971,587,341.86
  5. Step 5: Solve for x
    x = 971,587,341.86/40,823.50
  6. Step 6: Final answer
    x = 23,799.71

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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.