Home / 20,019.08-30,029.24-6,871.28

Finding the Fourth Proportional to 20,019.08, 30,029.24 and 6,871.28

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Solution

The fourth proportional to 20,019.08, 30,029.24 and 6,871.28 is: 10,307.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.08 : 30,029.24 = 6,871.28 : x
  2. Step 2: Convert to fraction form
    20,019.08/30,029.24 = 6,871.28/x
  3. Step 3: Cross multiply
    20,019.08x = 30,029.24 × 6,871.28
  4. Step 4: Simplify right side
    20,019.08x = 206,339,316.23
  5. Step 5: Solve for x
    x = 206,339,316.23/20,019.08
  6. Step 6: Final answer
    x = 10,307.13

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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.