Home / 20,932.63-31,343.05-17,611.12

Finding the Fourth Proportional to 20,932.63, 31,343.05 and 17,611.12

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Solution

The fourth proportional to 20,932.63, 31,343.05 and 17,611.12 is: 26,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.63 : 31,343.05 = 17,611.12 : x
  2. Step 2: Convert to fraction form
    20,932.63/31,343.05 = 17,611.12/x
  3. Step 3: Cross multiply
    20,932.63x = 31,343.05 × 17,611.12
  4. Step 4: Simplify right side
    20,932.63x = 551,986,275.91
  5. Step 5: Solve for x
    x = 551,986,275.91/20,932.63
  6. Step 6: Final answer
    x = 26,369.66

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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.