Home / 20,294.69-28,006.83-11,342.57

Finding the Fourth Proportional to 20,294.69, 28,006.83 and 11,342.57

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Solution

The fourth proportional to 20,294.69, 28,006.83 and 11,342.57 is: 15,652.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.69 : 28,006.83 = 11,342.57 : x
  2. Step 2: Convert to fraction form
    20,294.69/28,006.83 = 11,342.57/x
  3. Step 3: Cross multiply
    20,294.69x = 28,006.83 × 11,342.57
  4. Step 4: Simplify right side
    20,294.69x = 317,669,289.72
  5. Step 5: Solve for x
    x = 317,669,289.72/20,294.69
  6. Step 6: Final answer
    x = 15,652.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.