Home / 20,701.24-28,567.83-11,269.78

Finding the Fourth Proportional to 20,701.24, 28,567.83 and 11,269.78

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Solution

The fourth proportional to 20,701.24, 28,567.83 and 11,269.78 is: 15,552.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.24 : 28,567.83 = 11,269.78 : x
  2. Step 2: Convert to fraction form
    20,701.24/28,567.83 = 11,269.78/x
  3. Step 3: Cross multiply
    20,701.24x = 28,567.83 × 11,269.78
  4. Step 4: Simplify right side
    20,701.24x = 321,953,159.18
  5. Step 5: Solve for x
    x = 321,953,159.18/20,701.24
  6. Step 6: Final answer
    x = 15,552.36

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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.