Home / 21,331.38-32,000.81-7,288.11

Finding the Fourth Proportional to 21,331.38, 32,000.81 and 7,288.11

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Solution

The fourth proportional to 21,331.38, 32,000.81 and 7,288.11 is: 10,933.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.38 : 32,000.81 = 7,288.11 : x
  2. Step 2: Convert to fraction form
    21,331.38/32,000.81 = 7,288.11/x
  3. Step 3: Cross multiply
    21,331.38x = 32,000.81 × 7,288.11
  4. Step 4: Simplify right side
    21,331.38x = 233,225,386.93
  5. Step 5: Solve for x
    x = 233,225,386.93/21,331.38
  6. Step 6: Final answer
    x = 10,933.44

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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.