Home / 31,078.03-42,887.29-16,930.57

Finding the Fourth Proportional to 31,078.03, 42,887.29 and 16,930.57

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Solution

The fourth proportional to 31,078.03, 42,887.29 and 16,930.57 is: 23,363.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,078.03 : 42,887.29 = 16,930.57 : x
  2. Step 2: Convert to fraction form
    31,078.03/42,887.29 = 16,930.57/x
  3. Step 3: Cross multiply
    31,078.03x = 42,887.29 × 16,930.57
  4. Step 4: Simplify right side
    31,078.03x = 726,106,265.46
  5. Step 5: Solve for x
    x = 726,106,265.46/31,078.03
  6. Step 6: Final answer
    x = 23,363.97

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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.