Home / 31,151.11-42,989.12-17,004.46

Finding the Fourth Proportional to 31,151.11, 42,989.12 and 17,004.46

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Solution

The fourth proportional to 31,151.11, 42,989.12 and 17,004.46 is: 23,466.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,151.11 : 42,989.12 = 17,004.46 : x
  2. Step 2: Convert to fraction form
    31,151.11/42,989.12 = 17,004.46/x
  3. Step 3: Cross multiply
    31,151.11x = 42,989.12 × 17,004.46
  4. Step 4: Simplify right side
    31,151.11x = 731,006,686.45
  5. Step 5: Solve for x
    x = 731,006,686.45/31,151.11
  6. Step 6: Final answer
    x = 23,466.47

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1.5x scale

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.