Home / 22,255.88-30,711.02-13,301.60

Finding the Fourth Proportional to 22,255.88, 30,711.02 and 13,301.60

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Solution

The fourth proportional to 22,255.88, 30,711.02 and 13,301.60 is: 18,354.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,255.88 : 30,711.02 = 13,301.60 : x
  2. Step 2: Convert to fraction form
    22,255.88/30,711.02 = 13,301.60/x
  3. Step 3: Cross multiply
    22,255.88x = 30,711.02 × 13,301.60
  4. Step 4: Simplify right side
    22,255.88x = 408,505,703.63
  5. Step 5: Solve for x
    x = 408,505,703.63/22,255.88
  6. Step 6: Final answer
    x = 18,354.96

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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.