Home / 18,833.72-28,131.23-17,754.12

Finding the Fourth Proportional to 18,833.72, 28,131.23 and 17,754.12

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Solution

The fourth proportional to 18,833.72, 28,131.23 and 17,754.12 is: 26,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.72 : 28,131.23 = 17,754.12 : x
  2. Step 2: Convert to fraction form
    18,833.72/28,131.23 = 17,754.12/x
  3. Step 3: Cross multiply
    18,833.72x = 28,131.23 × 17,754.12
  4. Step 4: Simplify right side
    18,833.72x = 499,445,277.55
  5. Step 5: Solve for x
    x = 499,445,277.55/18,833.72
  6. Step 6: Final answer
    x = 26,518.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.