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Finding the Fourth Proportional to 25,527.60, 38,109.60 and 21,589.92

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Solution

The fourth proportional to 25,527.60, 38,109.60 and 21,589.92 is: 32,231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,527.60 : 38,109.60 = 21,589.92 : x
  2. Step 2: Convert to fraction form
    25,527.60/38,109.60 = 21,589.92/x
  3. Step 3: Cross multiply
    25,527.60x = 38,109.60 × 21,589.92
  4. Step 4: Simplify right side
    25,527.60x = 822,783,215.23
  5. Step 5: Solve for x
    x = 822,783,215.23/25,527.60
  6. Step 6: Final answer
    x = 32,231.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.