Home / 31,822.11-47,739.29-12,099.13

Finding the Fourth Proportional to 31,822.11, 47,739.29 and 12,099.13

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Solution

The fourth proportional to 31,822.11, 47,739.29 and 12,099.13 is: 18,151.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,822.11 : 47,739.29 = 12,099.13 : x
  2. Step 2: Convert to fraction form
    31,822.11/47,739.29 = 12,099.13/x
  3. Step 3: Cross multiply
    31,822.11x = 47,739.29 × 12,099.13
  4. Step 4: Simplify right side
    31,822.11x = 577,603,695.97
  5. Step 5: Solve for x
    x = 577,603,695.97/31,822.11
  6. Step 6: Final answer
    x = 18,151.02

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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.