Home / 20,017.52-30,026.73-6,870

Finding the Fourth Proportional to 20,017.52, 30,026.73 and 6,870

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Solution

The fourth proportional to 20,017.52, 30,026.73 and 6,870 is: 10,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.52 : 30,026.73 = 6,870 : x
  2. Step 2: Convert to fraction form
    20,017.52/30,026.73 = 6,870/x
  3. Step 3: Cross multiply
    20,017.52x = 30,026.73 × 6,870
  4. Step 4: Simplify right side
    20,017.52x = 206,283,635.10
  5. Step 5: Solve for x
    x = 206,283,635.10/20,017.52
  6. Step 6: Final answer
    x = 10,305.15

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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.