Home / 27,880.32-38,474.58-15,304.80

Finding the Fourth Proportional to 27,880.32, 38,474.58 and 15,304.80

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Solution

The fourth proportional to 27,880.32, 38,474.58 and 15,304.80 is: 21,120.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,880.32 : 38,474.58 = 15,304.80 : x
  2. Step 2: Convert to fraction form
    27,880.32/38,474.58 = 15,304.80/x
  3. Step 3: Cross multiply
    27,880.32x = 38,474.58 × 15,304.80
  4. Step 4: Simplify right side
    27,880.32x = 588,845,751.98
  5. Step 5: Solve for x
    x = 588,845,751.98/27,880.32
  6. Step 6: Final answer
    x = 21,120.48

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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.