Home / 28,885.78-39,853.92-16,949.62

Finding the Fourth Proportional to 28,885.78, 39,853.92 and 16,949.62

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Solution

The fourth proportional to 28,885.78, 39,853.92 and 16,949.62 is: 23,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885.78 : 39,853.92 = 16,949.62 : x
  2. Step 2: Convert to fraction form
    28,885.78/39,853.92 = 16,949.62/x
  3. Step 3: Cross multiply
    28,885.78x = 39,853.92 × 16,949.62
  4. Step 4: Simplify right side
    28,885.78x = 675,508,799.51
  5. Step 5: Solve for x
    x = 675,508,799.51/28,885.78
  6. Step 6: Final answer
    x = 23,385.51

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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.