Home / 20,019.10-30,029.26-6,871.32

Finding the Fourth Proportional to 20,019.10, 30,029.26 and 6,871.32

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Solution

The fourth proportional to 20,019.10, 30,029.26 and 6,871.32 is: 10,307.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.10 : 30,029.26 = 6,871.32 : x
  2. Step 2: Convert to fraction form
    20,019.10/30,029.26 = 6,871.32/x
  3. Step 3: Cross multiply
    20,019.10x = 30,029.26 × 6,871.32
  4. Step 4: Simplify right side
    20,019.10x = 206,340,654.82
  5. Step 5: Solve for x
    x = 206,340,654.82/20,019.10
  6. Step 6: Final answer
    x = 10,307.19

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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.