Home / 22,617.20-31,178.96-15,882.32

Finding the Fourth Proportional to 22,617.20, 31,178.96 and 15,882.32

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Solution

The fourth proportional to 22,617.20, 31,178.96 and 15,882.32 is: 21,894.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,617.20 : 31,178.96 = 15,882.32 : x
  2. Step 2: Convert to fraction form
    22,617.20/31,178.96 = 15,882.32/x
  3. Step 3: Cross multiply
    22,617.20x = 31,178.96 × 15,882.32
  4. Step 4: Simplify right side
    22,617.20x = 495,194,219.99
  5. Step 5: Solve for x
    x = 495,194,219.99/22,617.20
  6. Step 6: Final answer
    x = 21,894.59

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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.