Home / 25,520.96-38,281.44-7,992.16

Finding the Fourth Proportional to 25,520.96, 38,281.44 and 7,992.16

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Solution

The fourth proportional to 25,520.96, 38,281.44 and 7,992.16 is: 11,988.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,520.96 : 38,281.44 = 7,992.16 : x
  2. Step 2: Convert to fraction form
    25,520.96/38,281.44 = 7,992.16/x
  3. Step 3: Cross multiply
    25,520.96x = 38,281.44 × 7,992.16
  4. Step 4: Simplify right side
    25,520.96x = 305,951,393.51
  5. Step 5: Solve for x
    x = 305,951,393.51/25,520.96
  6. Step 6: Final answer
    x = 11,988.24

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