Home / 30,089.68-45,134.21-7,902.66

Finding the Fourth Proportional to 30,089.68, 45,134.21 and 7,902.66

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Solution

The fourth proportional to 30,089.68, 45,134.21 and 7,902.66 is: 11,853.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,089.68 : 45,134.21 = 7,902.66 : x
  2. Step 2: Convert to fraction form
    30,089.68/45,134.21 = 7,902.66/x
  3. Step 3: Cross multiply
    30,089.68x = 45,134.21 × 7,902.66
  4. Step 4: Simplify right side
    30,089.68x = 356,680,505.01
  5. Step 5: Solve for x
    x = 356,680,505.01/30,089.68
  6. Step 6: Final answer
    x = 11,853.92

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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.