Home / 25,641.92-35,357.28-21,028.76

Finding the Fourth Proportional to 25,641.92, 35,357.28 and 21,028.76

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Solution

The fourth proportional to 25,641.92, 35,357.28 and 21,028.76 is: 28,996.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,641.92 : 35,357.28 = 21,028.76 : x
  2. Step 2: Convert to fraction form
    25,641.92/35,357.28 = 21,028.76/x
  3. Step 3: Cross multiply
    25,641.92x = 35,357.28 × 21,028.76
  4. Step 4: Simplify right side
    25,641.92x = 743,519,755.37
  5. Step 5: Solve for x
    x = 743,519,755.37/25,641.92
  6. Step 6: Final answer
    x = 28,996.26

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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.