Home / 31,077.92-42,886.32-16,930.64

Finding the Fourth Proportional to 31,077.92, 42,886.32 and 16,930.64

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Solution

The fourth proportional to 31,077.92, 42,886.32 and 16,930.64 is: 23,363.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,077.92 : 42,886.32 = 16,930.64 : x
  2. Step 2: Convert to fraction form
    31,077.92/42,886.32 = 16,930.64/x
  3. Step 3: Cross multiply
    31,077.92x = 42,886.32 × 16,930.64
  4. Step 4: Simplify right side
    31,077.92x = 726,092,844.84
  5. Step 5: Solve for x
    x = 726,092,844.84/31,077.92
  6. Step 6: Final answer
    x = 23,363.62

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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.