Home / 20,107.06-30,129.82-10,748.40

Finding the Fourth Proportional to 20,107.06, 30,129.82 and 10,748.40

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Solution

The fourth proportional to 20,107.06, 30,129.82 and 10,748.40 is: 16,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.06 : 30,129.82 = 10,748.40 : x
  2. Step 2: Convert to fraction form
    20,107.06/30,129.82 = 10,748.40/x
  3. Step 3: Cross multiply
    20,107.06x = 30,129.82 × 10,748.40
  4. Step 4: Simplify right side
    20,107.06x = 323,847,357.29
  5. Step 5: Solve for x
    x = 323,847,357.29/20,107.06
  6. Step 6: Final answer
    x = 16,106.15

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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.