Home / 20,147.10-27,801.63-11,193.90

Finding the Fourth Proportional to 20,147.10, 27,801.63 and 11,193.90

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Solution

The fourth proportional to 20,147.10, 27,801.63 and 11,193.90 is: 15,446.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.10 : 27,801.63 = 11,193.90 : x
  2. Step 2: Convert to fraction form
    20,147.10/27,801.63 = 11,193.90/x
  3. Step 3: Cross multiply
    20,147.10x = 27,801.63 × 11,193.90
  4. Step 4: Simplify right side
    20,147.10x = 311,208,666.06
  5. Step 5: Solve for x
    x = 311,208,666.06/20,147.10
  6. Step 6: Final answer
    x = 15,446.82

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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.