Home / 20,546.10-30,801.15-13,950.90

Finding the Fourth Proportional to 20,546.10, 30,801.15 and 13,950.90

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Solution

The fourth proportional to 20,546.10, 30,801.15 and 13,950.90 is: 20,914.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,546.10 : 30,801.15 = 13,950.90 : x
  2. Step 2: Convert to fraction form
    20,546.10/30,801.15 = 13,950.90/x
  3. Step 3: Cross multiply
    20,546.10x = 30,801.15 × 13,950.90
  4. Step 4: Simplify right side
    20,546.10x = 429,703,763.54
  5. Step 5: Solve for x
    x = 429,703,763.54/20,546.10
  6. Step 6: Final answer
    x = 20,914.13

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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.