Home / 22,261.88-30,719.30-13,307.60

Finding the Fourth Proportional to 22,261.88, 30,719.30 and 13,307.60

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Solution

The fourth proportional to 22,261.88, 30,719.30 and 13,307.60 is: 18,363.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.88 : 30,719.30 = 13,307.60 : x
  2. Step 2: Convert to fraction form
    22,261.88/30,719.30 = 13,307.60/x
  3. Step 3: Cross multiply
    22,261.88x = 30,719.30 × 13,307.60
  4. Step 4: Simplify right side
    22,261.88x = 408,800,156.68
  5. Step 5: Solve for x
    x = 408,800,156.68/22,261.88
  6. Step 6: Final answer
    x = 18,363.24

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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.