Home / 20,111.13-30,167.51-6,785.55

Finding the Fourth Proportional to 20,111.13, 30,167.51 and 6,785.55

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Solution

The fourth proportional to 20,111.13, 30,167.51 and 6,785.55 is: 10,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111.13 : 30,167.51 = 6,785.55 : x
  2. Step 2: Convert to fraction form
    20,111.13/30,167.51 = 6,785.55/x
  3. Step 3: Cross multiply
    20,111.13x = 30,167.51 × 6,785.55
  4. Step 4: Simplify right side
    20,111.13x = 204,703,113.55
  5. Step 5: Solve for x
    x = 204,703,113.55/20,111.13
  6. Step 6: Final answer
    x = 10,178.60

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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.