Home / 20,701.09-28,567.52-11,269.66

Finding the Fourth Proportional to 20,701.09, 28,567.52 and 11,269.66

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Solution

The fourth proportional to 20,701.09, 28,567.52 and 11,269.66 is: 15,552.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.09 : 28,567.52 = 11,269.66 : x
  2. Step 2: Convert to fraction form
    20,701.09/28,567.52 = 11,269.66/x
  3. Step 3: Cross multiply
    20,701.09x = 28,567.52 × 11,269.66
  4. Step 4: Simplify right side
    20,701.09x = 321,946,237.44
  5. Step 5: Solve for x
    x = 321,946,237.44/20,701.09
  6. Step 6: Final answer
    x = 15,552.14

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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.