Home / 20,301.80-30,466.30-7,154.20

Finding the Fourth Proportional to 20,301.80, 30,466.30 and 7,154.20

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Solution

The fourth proportional to 20,301.80, 30,466.30 and 7,154.20 is: 10,736.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.80 : 30,466.30 = 7,154.20 : x
  2. Step 2: Convert to fraction form
    20,301.80/30,466.30 = 7,154.20/x
  3. Step 3: Cross multiply
    20,301.80x = 30,466.30 × 7,154.20
  4. Step 4: Simplify right side
    20,301.80x = 217,962,003.46
  5. Step 5: Solve for x
    x = 217,962,003.46/20,301.80
  6. Step 6: Final answer
    x = 10,736.09

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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.