Home / 31,034.89-42,827.56-16,887.43

Finding the Fourth Proportional to 31,034.89, 42,827.56 and 16,887.43

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Solution

The fourth proportional to 31,034.89, 42,827.56 and 16,887.43 is: 23,304.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,034.89 : 42,827.56 = 16,887.43 : x
  2. Step 2: Convert to fraction form
    31,034.89/42,827.56 = 16,887.43/x
  3. Step 3: Cross multiply
    31,034.89x = 42,827.56 × 16,887.43
  4. Step 4: Simplify right side
    31,034.89x = 723,247,421.57
  5. Step 5: Solve for x
    x = 723,247,421.57/31,034.89
  6. Step 6: Final answer
    x = 23,304.33

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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.