Home / 28,449.75-42,678.68-15,119.27

Finding the Fourth Proportional to 28,449.75, 42,678.68 and 15,119.27

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Solution

The fourth proportional to 28,449.75, 42,678.68 and 15,119.27 is: 22,681.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.75 : 42,678.68 = 15,119.27 : x
  2. Step 2: Convert to fraction form
    28,449.75/42,678.68 = 15,119.27/x
  3. Step 3: Cross multiply
    28,449.75x = 42,678.68 × 15,119.27
  4. Step 4: Simplify right side
    28,449.75x = 645,270,486.16
  5. Step 5: Solve for x
    x = 645,270,486.16/28,449.75
  6. Step 6: Final answer
    x = 22,681.06

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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.