Home / 20,209.40-30,314.11-6,169.51

Finding the Fourth Proportional to 20,209.40, 30,314.11 and 6,169.51

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Solution

The fourth proportional to 20,209.40, 30,314.11 and 6,169.51 is: 9,254.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.40 : 30,314.11 = 6,169.51 : x
  2. Step 2: Convert to fraction form
    20,209.40/30,314.11 = 6,169.51/x
  3. Step 3: Cross multiply
    20,209.40x = 30,314.11 × 6,169.51
  4. Step 4: Simplify right side
    20,209.40x = 187,023,204.79
  5. Step 5: Solve for x
    x = 187,023,204.79/20,209.40
  6. Step 6: Final answer
    x = 9,254.27

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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.