Home / 30,126.91-45,218.11-15,346.44

Finding the Fourth Proportional to 30,126.91, 45,218.11 and 15,346.44

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Solution

The fourth proportional to 30,126.91, 45,218.11 and 15,346.44 is: 23,033.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,126.91 : 45,218.11 = 15,346.44 : x
  2. Step 2: Convert to fraction form
    30,126.91/45,218.11 = 15,346.44/x
  3. Step 3: Cross multiply
    30,126.91x = 45,218.11 × 15,346.44
  4. Step 4: Simplify right side
    30,126.91x = 693,937,012.03
  5. Step 5: Solve for x
    x = 693,937,012.03/30,126.91
  6. Step 6: Final answer
    x = 23,033.79

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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.