Home / 47,272.76-70,922.31-20,621.13

Finding the Fourth Proportional to 47,272.76, 70,922.31 and 20,621.13

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Solution

The fourth proportional to 47,272.76, 70,922.31 and 20,621.13 is: 30,937.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,272.76 : 70,922.31 = 20,621.13 : x
  2. Step 2: Convert to fraction form
    47,272.76/70,922.31 = 20,621.13/x
  3. Step 3: Cross multiply
    47,272.76x = 70,922.31 × 20,621.13
  4. Step 4: Simplify right side
    47,272.76x = 1,462,498,174.41
  5. Step 5: Solve for x
    x = 1,462,498,174.41/47,272.76
  6. Step 6: Final answer
    x = 30,937.44

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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.