Home / 22,724.32-31,349.44-13,288.72

Finding the Fourth Proportional to 22,724.32, 31,349.44 and 13,288.72

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Solution

The fourth proportional to 22,724.32, 31,349.44 and 13,288.72 is: 18,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,724.32 : 31,349.44 = 13,288.72 : x
  2. Step 2: Convert to fraction form
    22,724.32/31,349.44 = 13,288.72/x
  3. Step 3: Cross multiply
    22,724.32x = 31,349.44 × 13,288.72
  4. Step 4: Simplify right side
    22,724.32x = 416,593,930.32
  5. Step 5: Solve for x
    x = 416,593,930.32/22,724.32
  6. Step 6: Final answer
    x = 18,332.51

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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.