Home / 30,146.46-45,213.53-11,420.04

Finding the Fourth Proportional to 30,146.46, 45,213.53 and 11,420.04

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Solution

The fourth proportional to 30,146.46, 45,213.53 and 11,420.04 is: 17,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,146.46 : 45,213.53 = 11,420.04 : x
  2. Step 2: Convert to fraction form
    30,146.46/45,213.53 = 11,420.04/x
  3. Step 3: Cross multiply
    30,146.46x = 45,213.53 × 11,420.04
  4. Step 4: Simplify right side
    30,146.46x = 516,340,037.97
  5. Step 5: Solve for x
    x = 516,340,037.97/30,146.46
  6. Step 6: Final answer
    x = 17,127.72

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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.