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Finding the Fourth Proportional to 17,298.80, 25,909.80 and 16,914.80

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Solution

The fourth proportional to 17,298.80, 25,909.80 and 16,914.80 is: 25,334.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,298.80 : 25,909.80 = 16,914.80 : x
  2. Step 2: Convert to fraction form
    17,298.80/25,909.80 = 16,914.80/x
  3. Step 3: Cross multiply
    17,298.80x = 25,909.80 × 16,914.80
  4. Step 4: Simplify right side
    17,298.80x = 438,259,085.04
  5. Step 5: Solve for x
    x = 438,259,085.04/17,298.80
  6. Step 6: Final answer
    x = 25,334.65

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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.