Home / 27,224.78-40,812.50-18,908.72

Finding the Fourth Proportional to 27,224.78, 40,812.50 and 18,908.72

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Solution

The fourth proportional to 27,224.78, 40,812.50 and 18,908.72 is: 28,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,224.78 : 40,812.50 = 18,908.72 : x
  2. Step 2: Convert to fraction form
    27,224.78/40,812.50 = 18,908.72/x
  3. Step 3: Cross multiply
    27,224.78x = 40,812.50 × 18,908.72
  4. Step 4: Simplify right side
    27,224.78x = 771,711,978.21
  5. Step 5: Solve for x
    x = 771,711,978.21/27,224.78
  6. Step 6: Final answer
    x = 28,345.95

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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.