Home / 22,418.57-30,938.76-12,860.02

Finding the Fourth Proportional to 22,418.57, 30,938.76 and 12,860.02

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Solution

The fourth proportional to 22,418.57, 30,938.76 and 12,860.02 is: 17,747.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,418.57 : 30,938.76 = 12,860.02 : x
  2. Step 2: Convert to fraction form
    22,418.57/30,938.76 = 12,860.02/x
  3. Step 3: Cross multiply
    22,418.57x = 30,938.76 × 12,860.02
  4. Step 4: Simplify right side
    22,418.57x = 397,872,937.02
  5. Step 5: Solve for x
    x = 397,872,937.02/22,418.57
  6. Step 6: Final answer
    x = 17,747.47

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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.