Home / 28,202.58-38,901.92-18,144.12

Finding the Fourth Proportional to 28,202.58, 38,901.92 and 18,144.12

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Solution

The fourth proportional to 28,202.58, 38,901.92 and 18,144.12 is: 25,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.58 : 38,901.92 = 18,144.12 : x
  2. Step 2: Convert to fraction form
    28,202.58/38,901.92 = 18,144.12/x
  3. Step 3: Cross multiply
    28,202.58x = 38,901.92 × 18,144.12
  4. Step 4: Simplify right side
    28,202.58x = 705,841,104.71
  5. Step 5: Solve for x
    x = 705,841,104.71/28,202.58
  6. Step 6: Final answer
    x = 25,027.54

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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.