Home / 21,660.69-32,417.10-18,154.65

Finding the Fourth Proportional to 21,660.69, 32,417.10 and 18,154.65

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Solution

The fourth proportional to 21,660.69, 32,417.10 and 18,154.65 is: 27,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,660.69 : 32,417.10 = 18,154.65 : x
  2. Step 2: Convert to fraction form
    21,660.69/32,417.10 = 18,154.65/x
  3. Step 3: Cross multiply
    21,660.69x = 32,417.10 × 18,154.65
  4. Step 4: Simplify right side
    21,660.69x = 588,521,149.90
  5. Step 5: Solve for x
    x = 588,521,149.90/21,660.69
  6. Step 6: Final answer
    x = 27,170.02

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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.