Home / 30,204.40-45,306.64-11,480.04

Finding the Fourth Proportional to 30,204.40, 45,306.64 and 11,480.04

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Solution

The fourth proportional to 30,204.40, 45,306.64 and 11,480.04 is: 17,220.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,204.40 : 45,306.64 = 11,480.04 : x
  2. Step 2: Convert to fraction form
    30,204.40/45,306.64 = 11,480.04/x
  3. Step 3: Cross multiply
    30,204.40x = 45,306.64 × 11,480.04
  4. Step 4: Simplify right side
    30,204.40x = 520,122,039.47
  5. Step 5: Solve for x
    x = 520,122,039.47/30,204.40
  6. Step 6: Final answer
    x = 17,220.08

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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.