Home / 47,599.20-71,418.39-20,931.47

Finding the Fourth Proportional to 47,599.20, 71,418.39 and 20,931.47

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Solution

The fourth proportional to 47,599.20, 71,418.39 and 20,931.47 is: 31,405.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,599.20 : 71,418.39 = 20,931.47 : x
  2. Step 2: Convert to fraction form
    47,599.20/71,418.39 = 20,931.47/x
  3. Step 3: Cross multiply
    47,599.20x = 71,418.39 × 20,931.47
  4. Step 4: Simplify right side
    47,599.20x = 1,494,891,530.64
  5. Step 5: Solve for x
    x = 1,494,891,530.64/47,599.20
  6. Step 6: Final answer
    x = 31,405.81

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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.