Home / 28,209.13-38,932.89-18,004.57

Finding the Fourth Proportional to 28,209.13, 38,932.89 and 18,004.57

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Solution

The fourth proportional to 28,209.13, 38,932.89 and 18,004.57 is: 24,849.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.13 : 38,932.89 = 18,004.57 : x
  2. Step 2: Convert to fraction form
    28,209.13/38,932.89 = 18,004.57/x
  3. Step 3: Cross multiply
    28,209.13x = 38,932.89 × 18,004.57
  4. Step 4: Simplify right side
    28,209.13x = 700,969,943.31
  5. Step 5: Solve for x
    x = 700,969,943.31/28,209.13
  6. Step 6: Final answer
    x = 24,849.05

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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.