Home / 30,090.62-45,132.28-15,310.14

Finding the Fourth Proportional to 30,090.62, 45,132.28 and 15,310.14

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Solution

The fourth proportional to 30,090.62, 45,132.28 and 15,310.14 is: 22,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.62 : 45,132.28 = 15,310.14 : x
  2. Step 2: Convert to fraction form
    30,090.62/45,132.28 = 15,310.14/x
  3. Step 3: Cross multiply
    30,090.62x = 45,132.28 × 15,310.14
  4. Step 4: Simplify right side
    30,090.62x = 690,981,599.87
  5. Step 5: Solve for x
    x = 690,981,599.87/30,090.62
  6. Step 6: Final answer
    x = 22,963.36

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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.