Home / 20,011.72-30,017.66-6,864.20

Finding the Fourth Proportional to 20,011.72, 30,017.66 and 6,864.20

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Solution

The fourth proportional to 20,011.72, 30,017.66 and 6,864.20 is: 10,296.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.72 : 30,017.66 = 6,864.20 : x
  2. Step 2: Convert to fraction form
    20,011.72/30,017.66 = 6,864.20/x
  3. Step 3: Cross multiply
    20,011.72x = 30,017.66 × 6,864.20
  4. Step 4: Simplify right side
    20,011.72x = 206,047,221.77
  5. Step 5: Solve for x
    x = 206,047,221.77/20,011.72
  6. Step 6: Final answer
    x = 10,296.33

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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.