Home / 21,882.48-30,145.14-17,404.80

Finding the Fourth Proportional to 21,882.48, 30,145.14 and 17,404.80

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Solution

The fourth proportional to 21,882.48, 30,145.14 and 17,404.80 is: 23,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,882.48 : 30,145.14 = 17,404.80 : x
  2. Step 2: Convert to fraction form
    21,882.48/30,145.14 = 17,404.80/x
  3. Step 3: Cross multiply
    21,882.48x = 30,145.14 × 17,404.80
  4. Step 4: Simplify right side
    21,882.48x = 524,670,132.67
  5. Step 5: Solve for x
    x = 524,670,132.67/21,882.48
  6. Step 6: Final answer
    x = 23,976.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.