Home / 22,017.90-30,401.36-13,531.74

Finding the Fourth Proportional to 22,017.90, 30,401.36 and 13,531.74

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Solution

The fourth proportional to 22,017.90, 30,401.36 and 13,531.74 is: 18,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,017.90 : 30,401.36 = 13,531.74 : x
  2. Step 2: Convert to fraction form
    22,017.90/30,401.36 = 13,531.74/x
  3. Step 3: Cross multiply
    22,017.90x = 30,401.36 × 13,531.74
  4. Step 4: Simplify right side
    22,017.90x = 411,383,299.17
  5. Step 5: Solve for x
    x = 411,383,299.17/22,017.90
  6. Step 6: Final answer
    x = 18,684.04

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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.