Home / 30,238.80-45,358.32-9,179.04

Finding the Fourth Proportional to 30,238.80, 45,358.32 and 9,179.04

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Solution

The fourth proportional to 30,238.80, 45,358.32 and 9,179.04 is: 13,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.80 : 45,358.32 = 9,179.04 : x
  2. Step 2: Convert to fraction form
    30,238.80/45,358.32 = 9,179.04/x
  3. Step 3: Cross multiply
    30,238.80x = 45,358.32 × 9,179.04
  4. Step 4: Simplify right side
    30,238.80x = 416,345,833.61
  5. Step 5: Solve for x
    x = 416,345,833.61/30,238.80
  6. Step 6: Final answer
    x = 13,768.60

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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.