Home / 28,625.20-42,947.52-25,864.72

Finding the Fourth Proportional to 28,625.20, 42,947.52 and 25,864.72

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Solution

The fourth proportional to 28,625.20, 42,947.52 and 25,864.72 is: 38,805.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625.20 : 42,947.52 = 25,864.72 : x
  2. Step 2: Convert to fraction form
    28,625.20/42,947.52 = 25,864.72/x
  3. Step 3: Cross multiply
    28,625.20x = 42,947.52 × 25,864.72
  4. Step 4: Simplify right side
    28,625.20x = 1,110,825,579.49
  5. Step 5: Solve for x
    x = 1,110,825,579.49/28,625.20
  6. Step 6: Final answer
    x = 38,805.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.