Home / 30,132.16-45,166.86-10,126.80

Finding the Fourth Proportional to 30,132.16, 45,166.86 and 10,126.80

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Solution

The fourth proportional to 30,132.16, 45,166.86 and 10,126.80 is: 15,179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,132.16 : 45,166.86 = 10,126.80 : x
  2. Step 2: Convert to fraction form
    30,132.16/45,166.86 = 10,126.80/x
  3. Step 3: Cross multiply
    30,132.16x = 45,166.86 × 10,126.80
  4. Step 4: Simplify right side
    30,132.16x = 457,395,757.85
  5. Step 5: Solve for x
    x = 457,395,757.85/30,132.16
  6. Step 6: Final answer
    x = 15,179.66

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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.