Home / 22,947.80-31,665.36-12,874.14

Finding the Fourth Proportional to 22,947.80, 31,665.36 and 12,874.14

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Solution

The fourth proportional to 22,947.80, 31,665.36 and 12,874.14 is: 17,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,947.80 : 31,665.36 = 12,874.14 : x
  2. Step 2: Convert to fraction form
    22,947.80/31,665.36 = 12,874.14/x
  3. Step 3: Cross multiply
    22,947.80x = 31,665.36 × 12,874.14
  4. Step 4: Simplify right side
    22,947.80x = 407,664,277.79
  5. Step 5: Solve for x
    x = 407,664,277.79/22,947.80
  6. Step 6: Final answer
    x = 17,764.85

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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.