Home / 17,009.20-25,513.80-13,728.70

Finding the Fourth Proportional to 17,009.20, 25,513.80 and 13,728.70

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Solution

The fourth proportional to 17,009.20, 25,513.80 and 13,728.70 is: 20,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,009.20 : 25,513.80 = 13,728.70 : x
  2. Step 2: Convert to fraction form
    17,009.20/25,513.80 = 13,728.70/x
  3. Step 3: Cross multiply
    17,009.20x = 25,513.80 × 13,728.70
  4. Step 4: Simplify right side
    17,009.20x = 350,271,306.06
  5. Step 5: Solve for x
    x = 350,271,306.06/17,009.20
  6. Step 6: Final answer
    x = 20,593.05

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Double scale
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Similar ratio
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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.