Home / 31,077.54-42,886.96-16,930.40

Finding the Fourth Proportional to 31,077.54, 42,886.96 and 16,930.40

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Solution

The fourth proportional to 31,077.54, 42,886.96 and 16,930.40 is: 23,363.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,077.54 : 42,886.96 = 16,930.40 : x
  2. Step 2: Convert to fraction form
    31,077.54/42,886.96 = 16,930.40/x
  3. Step 3: Cross multiply
    31,077.54x = 42,886.96 × 16,930.40
  4. Step 4: Simplify right side
    31,077.54x = 726,093,387.58
  5. Step 5: Solve for x
    x = 726,093,387.58/31,077.54
  6. Step 6: Final answer
    x = 23,363.93

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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.