Home / 31,076.14-42,886.12-16,930.30

Finding the Fourth Proportional to 31,076.14, 42,886.12 and 16,930.30

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Solution

The fourth proportional to 31,076.14, 42,886.12 and 16,930.30 is: 23,364.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,076.14 : 42,886.12 = 16,930.30 : x
  2. Step 2: Convert to fraction form
    31,076.14/42,886.12 = 16,930.30/x
  3. Step 3: Cross multiply
    31,076.14x = 42,886.12 × 16,930.30
  4. Step 4: Simplify right side
    31,076.14x = 726,074,877.44
  5. Step 5: Solve for x
    x = 726,074,877.44/31,076.14
  6. Step 6: Final answer
    x = 23,364.38

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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.