Home / 20,301.83-30,453.65-7,154.31

Finding the Fourth Proportional to 20,301.83, 30,453.65 and 7,154.31

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Solution

The fourth proportional to 20,301.83, 30,453.65 and 7,154.31 is: 10,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.83 : 30,453.65 = 7,154.31 : x
  2. Step 2: Convert to fraction form
    20,301.83/30,453.65 = 7,154.31/x
  3. Step 3: Cross multiply
    20,301.83x = 30,453.65 × 7,154.31
  4. Step 4: Simplify right side
    20,301.83x = 217,874,852.73
  5. Step 5: Solve for x
    x = 217,874,852.73/20,301.83
  6. Step 6: Final answer
    x = 10,731.78

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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.