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Finding the Fourth Proportional to 27,171.18, 40,819.32 and 19,184.40

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Solution

The fourth proportional to 27,171.18, 40,819.32 and 19,184.40 is: 28,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,171.18 : 40,819.32 = 19,184.40 : x
  2. Step 2: Convert to fraction form
    27,171.18/40,819.32 = 19,184.40/x
  3. Step 3: Cross multiply
    27,171.18x = 40,819.32 × 19,184.40
  4. Step 4: Simplify right side
    27,171.18x = 783,094,162.61
  5. Step 5: Solve for x
    x = 783,094,162.61/27,171.18
  6. Step 6: Final answer
    x = 28,820.76

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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.