Home / 28,235.43-38,947.95-18,675.54

Finding the Fourth Proportional to 28,235.43, 38,947.95 and 18,675.54

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Solution

The fourth proportional to 28,235.43, 38,947.95 and 18,675.54 is: 25,761.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.43 : 38,947.95 = 18,675.54 : x
  2. Step 2: Convert to fraction form
    28,235.43/38,947.95 = 18,675.54/x
  3. Step 3: Cross multiply
    28,235.43x = 38,947.95 × 18,675.54
  4. Step 4: Simplify right side
    28,235.43x = 727,373,998.14
  5. Step 5: Solve for x
    x = 727,373,998.14/28,235.43
  6. Step 6: Final answer
    x = 25,761.04

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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.