Home / 20,018.73-30,030.14-6,869.39

Finding the Fourth Proportional to 20,018.73, 30,030.14 and 6,869.39

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Solution

The fourth proportional to 20,018.73, 30,030.14 and 6,869.39 is: 10,304.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.73 : 30,030.14 = 6,869.39 : x
  2. Step 2: Convert to fraction form
    20,018.73/30,030.14 = 6,869.39/x
  3. Step 3: Cross multiply
    20,018.73x = 30,030.14 × 6,869.39
  4. Step 4: Simplify right side
    20,018.73x = 206,288,779.36
  5. Step 5: Solve for x
    x = 206,288,779.36/20,018.73
  6. Step 6: Final answer
    x = 10,304.79

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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.