Home / 28,270.28-39,013.69-15,524.72

Finding the Fourth Proportional to 28,270.28, 39,013.69 and 15,524.72

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Solution

The fourth proportional to 28,270.28, 39,013.69 and 15,524.72 is: 21,424.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270.28 : 39,013.69 = 15,524.72 : x
  2. Step 2: Convert to fraction form
    28,270.28/39,013.69 = 15,524.72/x
  3. Step 3: Cross multiply
    28,270.28x = 39,013.69 × 15,524.72
  4. Step 4: Simplify right side
    28,270.28x = 605,676,613.42
  5. Step 5: Solve for x
    x = 605,676,613.42/28,270.28
  6. Step 6: Final answer
    x = 21,424.50

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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.