Home / 20,223.18-27,907.59-11,270.49

Finding the Fourth Proportional to 20,223.18, 27,907.59 and 11,270.49

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Solution

The fourth proportional to 20,223.18, 27,907.59 and 11,270.49 is: 15,553.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.18 : 27,907.59 = 11,270.49 : x
  2. Step 2: Convert to fraction form
    20,223.18/27,907.59 = 11,270.49/x
  3. Step 3: Cross multiply
    20,223.18x = 27,907.59 × 11,270.49
  4. Step 4: Simplify right side
    20,223.18x = 314,532,214.02
  5. Step 5: Solve for x
    x = 314,532,214.02/20,223.18
  6. Step 6: Final answer
    x = 15,553.05

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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.