Home / 31,876.66-47,816.02-13,158.22

Finding the Fourth Proportional to 31,876.66, 47,816.02 and 13,158.22

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Solution

The fourth proportional to 31,876.66, 47,816.02 and 13,158.22 is: 19,737.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,876.66 : 47,816.02 = 13,158.22 : x
  2. Step 2: Convert to fraction form
    31,876.66/47,816.02 = 13,158.22/x
  3. Step 3: Cross multiply
    31,876.66x = 47,816.02 × 13,158.22
  4. Step 4: Simplify right side
    31,876.66x = 629,173,831.73
  5. Step 5: Solve for x
    x = 629,173,831.73/31,876.66
  6. Step 6: Final answer
    x = 19,737.76

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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.