Home / 28,235.52-38,982.96-18,167.76

Finding the Fourth Proportional to 28,235.52, 38,982.96 and 18,167.76

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Solution

The fourth proportional to 28,235.52, 38,982.96 and 18,167.76 is: 25,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.52 : 38,982.96 = 18,167.76 : x
  2. Step 2: Convert to fraction form
    28,235.52/38,982.96 = 18,167.76/x
  3. Step 3: Cross multiply
    28,235.52x = 38,982.96 × 18,167.76
  4. Step 4: Simplify right side
    28,235.52x = 708,233,061.37
  5. Step 5: Solve for x
    x = 708,233,061.37/28,235.52
  6. Step 6: Final answer
    x = 25,083.05

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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.