Home / 27,212.30-37,555.55-15,880.88

Finding the Fourth Proportional to 27,212.30, 37,555.55 and 15,880.88

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Solution

The fourth proportional to 27,212.30, 37,555.55 and 15,880.88 is: 21,917.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,212.30 : 37,555.55 = 15,880.88 : x
  2. Step 2: Convert to fraction form
    27,212.30/37,555.55 = 15,880.88/x
  3. Step 3: Cross multiply
    27,212.30x = 37,555.55 × 15,880.88
  4. Step 4: Simplify right side
    27,212.30x = 596,414,915.70
  5. Step 5: Solve for x
    x = 596,414,915.70/27,212.30
  6. Step 6: Final answer
    x = 21,917.11

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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.