Home / 31,985.39-44,147.76-21,793.28

Finding the Fourth Proportional to 31,985.39, 44,147.76 and 21,793.28

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Solution

The fourth proportional to 31,985.39, 44,147.76 and 21,793.28 is: 30,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985.39 : 44,147.76 = 21,793.28 : x
  2. Step 2: Convert to fraction form
    31,985.39/44,147.76 = 21,793.28/x
  3. Step 3: Cross multiply
    31,985.39x = 44,147.76 × 21,793.28
  4. Step 4: Simplify right side
    31,985.39x = 962,124,386.09
  5. Step 5: Solve for x
    x = 962,124,386.09/31,985.39
  6. Step 6: Final answer
    x = 30,080.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.