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Finding the Fourth Proportional to 25,382.88, 38,008.74 and 17,509.68

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Solution

The fourth proportional to 25,382.88, 38,008.74 and 17,509.68 is: 26,219.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,382.88 : 38,008.74 = 17,509.68 : x
  2. Step 2: Convert to fraction form
    25,382.88/38,008.74 = 17,509.68/x
  3. Step 3: Cross multiply
    25,382.88x = 38,008.74 × 17,509.68
  4. Step 4: Simplify right side
    25,382.88x = 665,520,874.60
  5. Step 5: Solve for x
    x = 665,520,874.60/25,382.88
  6. Step 6: Final answer
    x = 26,219.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.