Home / 20,934.72-31,389.93-8,444.52

Finding the Fourth Proportional to 20,934.72, 31,389.93 and 8,444.52

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Solution

The fourth proportional to 20,934.72, 31,389.93 and 8,444.52 is: 12,661.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.72 : 31,389.93 = 8,444.52 : x
  2. Step 2: Convert to fraction form
    20,934.72/31,389.93 = 8,444.52/x
  3. Step 3: Cross multiply
    20,934.72x = 31,389.93 × 8,444.52
  4. Step 4: Simplify right side
    20,934.72x = 265,072,891.68
  5. Step 5: Solve for x
    x = 265,072,891.68/20,934.72
  6. Step 6: Final answer
    x = 12,661.88

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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.