Home / 20,606.30-30,899.10-10,077.14

Finding the Fourth Proportional to 20,606.30, 30,899.10 and 10,077.14

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Solution

The fourth proportional to 20,606.30, 30,899.10 and 10,077.14 is: 15,110.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.30 : 30,899.10 = 10,077.14 : x
  2. Step 2: Convert to fraction form
    20,606.30/30,899.10 = 10,077.14/x
  3. Step 3: Cross multiply
    20,606.30x = 30,899.10 × 10,077.14
  4. Step 4: Simplify right side
    20,606.30x = 311,374,556.57
  5. Step 5: Solve for x
    x = 311,374,556.57/20,606.30
  6. Step 6: Final answer
    x = 15,110.65

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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.