Home / 25,621.92-35,356.50-20,329.38

Finding the Fourth Proportional to 25,621.92, 35,356.50 and 20,329.38

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Solution

The fourth proportional to 25,621.92, 35,356.50 and 20,329.38 is: 28,053.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,621.92 : 35,356.50 = 20,329.38 : x
  2. Step 2: Convert to fraction form
    25,621.92/35,356.50 = 20,329.38/x
  3. Step 3: Cross multiply
    25,621.92x = 35,356.50 × 20,329.38
  4. Step 4: Simplify right side
    25,621.92x = 718,775,723.97
  5. Step 5: Solve for x
    x = 718,775,723.97/25,621.92
  6. Step 6: Final answer
    x = 28,053.16

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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.