Home / 28,501.91-42,765.15-15,351.65

Finding the Fourth Proportional to 28,501.91, 42,765.15 and 15,351.65

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Solution

The fourth proportional to 28,501.91, 42,765.15 and 15,351.65 is: 23,034.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.91 : 42,765.15 = 15,351.65 : x
  2. Step 2: Convert to fraction form
    28,501.91/42,765.15 = 15,351.65/x
  3. Step 3: Cross multiply
    28,501.91x = 42,765.15 × 15,351.65
  4. Step 4: Simplify right side
    28,501.91x = 656,515,401.17
  5. Step 5: Solve for x
    x = 656,515,401.17/28,501.91
  6. Step 6: Final answer
    x = 23,034.09

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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.