Home / 25,508.81-35,115.99-21,025.46

Finding the Fourth Proportional to 25,508.81, 35,115.99 and 21,025.46

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Solution

The fourth proportional to 25,508.81, 35,115.99 and 21,025.46 is: 28,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,508.81 : 35,115.99 = 21,025.46 : x
  2. Step 2: Convert to fraction form
    25,508.81/35,115.99 = 21,025.46/x
  3. Step 3: Cross multiply
    25,508.81x = 35,115.99 × 21,025.46
  4. Step 4: Simplify right side
    25,508.81x = 738,329,843.11
  5. Step 5: Solve for x
    x = 738,329,843.11/25,508.81
  6. Step 6: Final answer
    x = 28,944.11

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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.