Home / 18,839.12-28,240.25-10,523.12

Finding the Fourth Proportional to 18,839.12, 28,240.25 and 10,523.12

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Solution

The fourth proportional to 18,839.12, 28,240.25 and 10,523.12 is: 15,774.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.12 : 28,240.25 = 10,523.12 : x
  2. Step 2: Convert to fraction form
    18,839.12/28,240.25 = 10,523.12/x
  3. Step 3: Cross multiply
    18,839.12x = 28,240.25 × 10,523.12
  4. Step 4: Simplify right side
    18,839.12x = 297,175,345.76
  5. Step 5: Solve for x
    x = 297,175,345.76/18,839.12
  6. Step 6: Final answer
    x = 15,774.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.