Home / 28,405.20-39,191.92-18,053.18

Finding the Fourth Proportional to 28,405.20, 39,191.92 and 18,053.18

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Solution

The fourth proportional to 28,405.20, 39,191.92 and 18,053.18 is: 24,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.20 : 39,191.92 = 18,053.18 : x
  2. Step 2: Convert to fraction form
    28,405.20/39,191.92 = 18,053.18/x
  3. Step 3: Cross multiply
    28,405.20x = 39,191.92 × 18,053.18
  4. Step 4: Simplify right side
    28,405.20x = 707,538,786.31
  5. Step 5: Solve for x
    x = 707,538,786.31/28,405.20
  6. Step 6: Final answer
    x = 24,908.78

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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.