Home / 21,986.59-32,979.42-5,346.71

Finding the Fourth Proportional to 21,986.59, 32,979.42 and 5,346.71

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Solution

The fourth proportional to 21,986.59, 32,979.42 and 5,346.71 is: 8,019.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.59 : 32,979.42 = 5,346.71 : x
  2. Step 2: Convert to fraction form
    21,986.59/32,979.42 = 5,346.71/x
  3. Step 3: Cross multiply
    21,986.59x = 32,979.42 × 5,346.71
  4. Step 4: Simplify right side
    21,986.59x = 176,331,353.48
  5. Step 5: Solve for x
    x = 176,331,353.48/21,986.59
  6. Step 6: Final answer
    x = 8,019.95

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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.