Home / 31,811.86-47,696.19-14,939.02

Finding the Fourth Proportional to 31,811.86, 47,696.19 and 14,939.02

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Solution

The fourth proportional to 31,811.86, 47,696.19 and 14,939.02 is: 22,398.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,811.86 : 47,696.19 = 14,939.02 : x
  2. Step 2: Convert to fraction form
    31,811.86/47,696.19 = 14,939.02/x
  3. Step 3: Cross multiply
    31,811.86x = 47,696.19 × 14,939.02
  4. Step 4: Simplify right side
    31,811.86x = 712,534,336.33
  5. Step 5: Solve for x
    x = 712,534,336.33/31,811.86
  6. Step 6: Final answer
    x = 22,398.39

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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.