Home / 20,588.40-30,882.60-11,224.80

Finding the Fourth Proportional to 20,588.40, 30,882.60 and 11,224.80

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Solution

The fourth proportional to 20,588.40, 30,882.60 and 11,224.80 is: 16,837.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.40 : 30,882.60 = 11,224.80 : x
  2. Step 2: Convert to fraction form
    20,588.40/30,882.60 = 11,224.80/x
  3. Step 3: Cross multiply
    20,588.40x = 30,882.60 × 11,224.80
  4. Step 4: Simplify right side
    20,588.40x = 346,651,008.48
  5. Step 5: Solve for x
    x = 346,651,008.48/20,588.40
  6. Step 6: Final answer
    x = 16,837.20

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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.