Home / 27,432.88-41,079.04-18,987.68

Finding the Fourth Proportional to 27,432.88, 41,079.04 and 18,987.68

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Solution

The fourth proportional to 27,432.88, 41,079.04 and 18,987.68 is: 28,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,432.88 : 41,079.04 = 18,987.68 : x
  2. Step 2: Convert to fraction form
    27,432.88/41,079.04 = 18,987.68/x
  3. Step 3: Cross multiply
    27,432.88x = 41,079.04 × 18,987.68
  4. Step 4: Simplify right side
    27,432.88x = 779,995,666.23
  5. Step 5: Solve for x
    x = 779,995,666.23/27,432.88
  6. Step 6: Final answer
    x = 28,432.88

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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.