Home / 18,282.40-25,186.48-15,074.80

Finding the Fourth Proportional to 18,282.40, 25,186.48 and 15,074.80

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Solution

The fourth proportional to 18,282.40, 25,186.48 and 15,074.80 is: 20,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.40 : 25,186.48 = 15,074.80 : x
  2. Step 2: Convert to fraction form
    18,282.40/25,186.48 = 15,074.80/x
  3. Step 3: Cross multiply
    18,282.40x = 25,186.48 × 15,074.80
  4. Step 4: Simplify right side
    18,282.40x = 379,681,148.70
  5. Step 5: Solve for x
    x = 379,681,148.70/18,282.40
  6. Step 6: Final answer
    x = 20,767.58

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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.