Home / 25,298.96-34,880.11-20,744.86

Finding the Fourth Proportional to 25,298.96, 34,880.11 and 20,744.86

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Solution

The fourth proportional to 25,298.96, 34,880.11 and 20,744.86 is: 28,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,298.96 : 34,880.11 = 20,744.86 : x
  2. Step 2: Convert to fraction form
    25,298.96/34,880.11 = 20,744.86/x
  3. Step 3: Cross multiply
    25,298.96x = 34,880.11 × 20,744.86
  4. Step 4: Simplify right side
    25,298.96x = 723,582,998.73
  5. Step 5: Solve for x
    x = 723,582,998.73/25,298.96
  6. Step 6: Final answer
    x = 28,601.29

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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.