Home / 27,432.13-41,077.91-18,986.93

Finding the Fourth Proportional to 27,432.13, 41,077.91 and 18,986.93

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Solution

The fourth proportional to 27,432.13, 41,077.91 and 18,986.93 is: 28,431.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,432.13 : 41,077.91 = 18,986.93 : x
  2. Step 2: Convert to fraction form
    27,432.13/41,077.91 = 18,986.93/x
  3. Step 3: Cross multiply
    27,432.13x = 41,077.91 × 18,986.93
  4. Step 4: Simplify right side
    27,432.13x = 779,943,551.88
  5. Step 5: Solve for x
    x = 779,943,551.88/27,432.13
  6. Step 6: Final answer
    x = 28,431.76

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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.