Home / 30,001.20-41,401.80-17,257.20

Finding the Fourth Proportional to 30,001.20, 41,401.80 and 17,257.20

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Solution

The fourth proportional to 30,001.20, 41,401.80 and 17,257.20 is: 23,815.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,001.20 : 41,401.80 = 17,257.20 : x
  2. Step 2: Convert to fraction form
    30,001.20/41,401.80 = 17,257.20/x
  3. Step 3: Cross multiply
    30,001.20x = 41,401.80 × 17,257.20
  4. Step 4: Simplify right side
    30,001.20x = 714,479,142.96
  5. Step 5: Solve for x
    x = 714,479,142.96/30,001.20
  6. Step 6: Final answer
    x = 23,815.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.