Home / 21,724.56-32,549.49-11,870.73

Finding the Fourth Proportional to 21,724.56, 32,549.49 and 11,870.73

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Solution

The fourth proportional to 21,724.56, 32,549.49 and 11,870.73 is: 17,785.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.56 : 32,549.49 = 11,870.73 : x
  2. Step 2: Convert to fraction form
    21,724.56/32,549.49 = 11,870.73/x
  3. Step 3: Cross multiply
    21,724.56x = 32,549.49 × 11,870.73
  4. Step 4: Simplify right side
    21,724.56x = 386,386,207.43
  5. Step 5: Solve for x
    x = 386,386,207.43/21,724.56
  6. Step 6: Final answer
    x = 17,785.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.