Home / 21,988.41-32,974.38-8,836.31

Finding the Fourth Proportional to 21,988.41, 32,974.38 and 8,836.31

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Solution

The fourth proportional to 21,988.41, 32,974.38 and 8,836.31 is: 13,251.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.41 : 32,974.38 = 8,836.31 : x
  2. Step 2: Convert to fraction form
    21,988.41/32,974.38 = 8,836.31/x
  3. Step 3: Cross multiply
    21,988.41x = 32,974.38 × 8,836.31
  4. Step 4: Simplify right side
    21,988.41x = 291,371,678.87
  5. Step 5: Solve for x
    x = 291,371,678.87/21,988.41
  6. Step 6: Final answer
    x = 13,251.15

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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.