Home / 30,153.04-45,231.71-7,966.19

Finding the Fourth Proportional to 30,153.04, 45,231.71 and 7,966.19

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Solution

The fourth proportional to 30,153.04, 45,231.71 and 7,966.19 is: 11,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,153.04 : 45,231.71 = 7,966.19 : x
  2. Step 2: Convert to fraction form
    30,153.04/45,231.71 = 7,966.19/x
  3. Step 3: Cross multiply
    30,153.04x = 45,231.71 × 7,966.19
  4. Step 4: Simplify right side
    30,153.04x = 360,324,395.88
  5. Step 5: Solve for x
    x = 360,324,395.88/30,153.04
  6. Step 6: Final answer
    x = 11,949.85

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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.