Home / 20,229.32-27,915.51-11,277.67

Finding the Fourth Proportional to 20,229.32, 27,915.51 and 11,277.67

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Solution

The fourth proportional to 20,229.32, 27,915.51 and 11,277.67 is: 15,562.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.32 : 27,915.51 = 11,277.67 : x
  2. Step 2: Convert to fraction form
    20,229.32/27,915.51 = 11,277.67/x
  3. Step 3: Cross multiply
    20,229.32x = 27,915.51 × 11,277.67
  4. Step 4: Simplify right side
    20,229.32x = 314,821,909.66
  5. Step 5: Solve for x
    x = 314,821,909.66/20,229.32
  6. Step 6: Final answer
    x = 15,562.65

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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.