Home / 20,223.84-27,907.20-11,270.64

Finding the Fourth Proportional to 20,223.84, 27,907.20 and 11,270.64

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Solution

The fourth proportional to 20,223.84, 27,907.20 and 11,270.64 is: 15,552.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.84 : 27,907.20 = 11,270.64 : x
  2. Step 2: Convert to fraction form
    20,223.84/27,907.20 = 11,270.64/x
  3. Step 3: Cross multiply
    20,223.84x = 27,907.20 × 11,270.64
  4. Step 4: Simplify right side
    20,223.84x = 314,532,004.61
  5. Step 5: Solve for x
    x = 314,532,004.61/20,223.84
  6. Step 6: Final answer
    x = 15,552.54

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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.