Home / 20,995.20-31,456.32-17,527.68

Finding the Fourth Proportional to 20,995.20, 31,456.32 and 17,527.68

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Solution

The fourth proportional to 20,995.20, 31,456.32 and 17,527.68 is: 26,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.20 : 31,456.32 = 17,527.68 : x
  2. Step 2: Convert to fraction form
    20,995.20/31,456.32 = 17,527.68/x
  3. Step 3: Cross multiply
    20,995.20x = 31,456.32 × 17,527.68
  4. Step 4: Simplify right side
    20,995.20x = 551,356,310.94
  5. Step 5: Solve for x
    x = 551,356,310.94/20,995.20
  6. Step 6: Final answer
    x = 26,261.06

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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.