Home / 27,678.05-38,200.59-16,346.78

Finding the Fourth Proportional to 27,678.05, 38,200.59 and 16,346.78

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Solution

The fourth proportional to 27,678.05, 38,200.59 and 16,346.78 is: 22,561.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,678.05 : 38,200.59 = 16,346.78 : x
  2. Step 2: Convert to fraction form
    27,678.05/38,200.59 = 16,346.78/x
  3. Step 3: Cross multiply
    27,678.05x = 38,200.59 × 16,346.78
  4. Step 4: Simplify right side
    27,678.05x = 624,456,640.60
  5. Step 5: Solve for x
    x = 624,456,640.60/27,678.05
  6. Step 6: Final answer
    x = 22,561.44

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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.