Home / 31,648.20-47,508.12-19,968

Finding the Fourth Proportional to 31,648.20, 47,508.12 and 19,968

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Solution

The fourth proportional to 31,648.20, 47,508.12 and 19,968 is: 29,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,648.20 : 47,508.12 = 19,968 : x
  2. Step 2: Convert to fraction form
    31,648.20/47,508.12 = 19,968/x
  3. Step 3: Cross multiply
    31,648.20x = 47,508.12 × 19,968
  4. Step 4: Simplify right side
    31,648.20x = 948,642,140.16
  5. Step 5: Solve for x
    x = 948,642,140.16/31,648.20
  6. Step 6: Final answer
    x = 29,974.60

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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.