Home / 20,302.69-28,017.92-11,350.69

Finding the Fourth Proportional to 20,302.69, 28,017.92 and 11,350.69

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Solution

The fourth proportional to 20,302.69, 28,017.92 and 11,350.69 is: 15,664.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.69 : 28,017.92 = 11,350.69 : x
  2. Step 2: Convert to fraction form
    20,302.69/28,017.92 = 11,350.69/x
  3. Step 3: Cross multiply
    20,302.69x = 28,017.92 × 11,350.69
  4. Step 4: Simplify right side
    20,302.69x = 318,022,724.36
  5. Step 5: Solve for x
    x = 318,022,724.36/20,302.69
  6. Step 6: Final answer
    x = 15,664.07

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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.