Home / 30,016.38-45,026.86-8,954.78

Finding the Fourth Proportional to 30,016.38, 45,026.86 and 8,954.78

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Solution

The fourth proportional to 30,016.38, 45,026.86 and 8,954.78 is: 13,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,016.38 : 45,026.86 = 8,954.78 : x
  2. Step 2: Convert to fraction form
    30,016.38/45,026.86 = 8,954.78/x
  3. Step 3: Cross multiply
    30,016.38x = 45,026.86 × 8,954.78
  4. Step 4: Simplify right side
    30,016.38x = 403,205,625.39
  5. Step 5: Solve for x
    x = 403,205,625.39/30,016.38
  6. Step 6: Final answer
    x = 13,432.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.