Home / 25,728.66-35,506.22-15,118.88

Finding the Fourth Proportional to 25,728.66, 35,506.22 and 15,118.88

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Solution

The fourth proportional to 25,728.66, 35,506.22 and 15,118.88 is: 20,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.66 : 35,506.22 = 15,118.88 : x
  2. Step 2: Convert to fraction form
    25,728.66/35,506.22 = 15,118.88/x
  3. Step 3: Cross multiply
    25,728.66x = 35,506.22 × 15,118.88
  4. Step 4: Simplify right side
    25,728.66x = 536,814,026.31
  5. Step 5: Solve for x
    x = 536,814,026.31/25,728.66
  6. Step 6: Final answer
    x = 20,864.44

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.