Home / 28,387.65-42,515.82-27,403.50

Finding the Fourth Proportional to 28,387.65, 42,515.82 and 27,403.50

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Solution

The fourth proportional to 28,387.65, 42,515.82 and 27,403.50 is: 41,041.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387.65 : 42,515.82 = 27,403.50 : x
  2. Step 2: Convert to fraction form
    28,387.65/42,515.82 = 27,403.50/x
  3. Step 3: Cross multiply
    28,387.65x = 42,515.82 × 27,403.50
  4. Step 4: Simplify right side
    28,387.65x = 1,165,082,273.37
  5. Step 5: Solve for x
    x = 1,165,082,273.37/28,387.65
  6. Step 6: Final answer
    x = 41,041.87

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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.