Home / 29,538.72-40,753.14-18,934.20

Finding the Fourth Proportional to 29,538.72, 40,753.14 and 18,934.20

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Solution

The fourth proportional to 29,538.72, 40,753.14 and 18,934.20 is: 26,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,538.72 : 40,753.14 = 18,934.20 : x
  2. Step 2: Convert to fraction form
    29,538.72/40,753.14 = 18,934.20/x
  3. Step 3: Cross multiply
    29,538.72x = 40,753.14 × 18,934.20
  4. Step 4: Simplify right side
    29,538.72x = 771,628,103.39
  5. Step 5: Solve for x
    x = 771,628,103.39/29,538.72
  6. Step 6: Final answer
    x = 26,122.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.