Home / 20,030.69-30,017.33-11,247.15

Finding the Fourth Proportional to 20,030.69, 30,017.33 and 11,247.15

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Solution

The fourth proportional to 20,030.69, 30,017.33 and 11,247.15 is: 16,854.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.69 : 30,017.33 = 11,247.15 : x
  2. Step 2: Convert to fraction form
    20,030.69/30,017.33 = 11,247.15/x
  3. Step 3: Cross multiply
    20,030.69x = 30,017.33 × 11,247.15
  4. Step 4: Simplify right side
    20,030.69x = 337,609,356.87
  5. Step 5: Solve for x
    x = 337,609,356.87/20,030.69
  6. Step 6: Final answer
    x = 16,854.61

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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.