Home / 27,680.05-38,203.35-16,348.78

Finding the Fourth Proportional to 27,680.05, 38,203.35 and 16,348.78

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Solution

The fourth proportional to 27,680.05, 38,203.35 and 16,348.78 is: 22,564.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,680.05 : 38,203.35 = 16,348.78 : x
  2. Step 2: Convert to fraction form
    27,680.05/38,203.35 = 16,348.78/x
  3. Step 3: Cross multiply
    27,680.05x = 38,203.35 × 16,348.78
  4. Step 4: Simplify right side
    27,680.05x = 624,578,164.41
  5. Step 5: Solve for x
    x = 624,578,164.41/27,680.05
  6. Step 6: Final answer
    x = 22,564.20

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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.