Home / 22,947.11-31,685.69-18,698.80

Finding the Fourth Proportional to 22,947.11, 31,685.69 and 18,698.80

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Solution

The fourth proportional to 22,947.11, 31,685.69 and 18,698.80 is: 25,819.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,947.11 : 31,685.69 = 18,698.80 : x
  2. Step 2: Convert to fraction form
    22,947.11/31,685.69 = 18,698.80/x
  3. Step 3: Cross multiply
    22,947.11x = 31,685.69 × 18,698.80
  4. Step 4: Simplify right side
    22,947.11x = 592,484,380.17
  5. Step 5: Solve for x
    x = 592,484,380.17/22,947.11
  6. Step 6: Final answer
    x = 25,819.56

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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.