Home / 30,203.40-45,305.14-11,479.04

Finding the Fourth Proportional to 30,203.40, 45,305.14 and 11,479.04

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Solution

The fourth proportional to 30,203.40, 45,305.14 and 11,479.04 is: 17,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,203.40 : 45,305.14 = 11,479.04 : x
  2. Step 2: Convert to fraction form
    30,203.40/45,305.14 = 11,479.04/x
  3. Step 3: Cross multiply
    30,203.40x = 45,305.14 × 11,479.04
  4. Step 4: Simplify right side
    30,203.40x = 520,059,450.46
  5. Step 5: Solve for x
    x = 520,059,450.46/30,203.40
  6. Step 6: Final answer
    x = 17,218.57

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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.