Home / 22,685.68-31,306.88-13,734.80

Finding the Fourth Proportional to 22,685.68, 31,306.88 and 13,734.80

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Solution

The fourth proportional to 22,685.68, 31,306.88 and 13,734.80 is: 18,954.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,685.68 : 31,306.88 = 13,734.80 : x
  2. Step 2: Convert to fraction form
    22,685.68/31,306.88 = 13,734.80/x
  3. Step 3: Cross multiply
    22,685.68x = 31,306.88 × 13,734.80
  4. Step 4: Simplify right side
    22,685.68x = 429,993,735.42
  5. Step 5: Solve for x
    x = 429,993,735.42/22,685.68
  6. Step 6: Final answer
    x = 18,954.41

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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.