Home / 20,304.50-30,421.89-18,250.16

Finding the Fourth Proportional to 20,304.50, 30,421.89 and 18,250.16

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Solution

The fourth proportional to 20,304.50, 30,421.89 and 18,250.16 is: 27,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.50 : 30,421.89 = 18,250.16 : x
  2. Step 2: Convert to fraction form
    20,304.50/30,421.89 = 18,250.16/x
  3. Step 3: Cross multiply
    20,304.50x = 30,421.89 × 18,250.16
  4. Step 4: Simplify right side
    20,304.50x = 555,204,207.89
  5. Step 5: Solve for x
    x = 555,204,207.89/20,304.50
  6. Step 6: Final answer
    x = 27,343.91

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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.