Home / 20,701.01-28,567.91-11,270.09

Finding the Fourth Proportional to 20,701.01, 28,567.91 and 11,270.09

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Solution

The fourth proportional to 20,701.01, 28,567.91 and 11,270.09 is: 15,553.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.01 : 28,567.91 = 11,270.09 : x
  2. Step 2: Convert to fraction form
    20,701.01/28,567.91 = 11,270.09/x
  3. Step 3: Cross multiply
    20,701.01x = 28,567.91 × 11,270.09
  4. Step 4: Simplify right side
    20,701.01x = 321,962,916.81
  5. Step 5: Solve for x
    x = 321,962,916.81/20,701.01
  6. Step 6: Final answer
    x = 15,553.01

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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.