Home / 30,129.30-41,578.79-16,700.72

Finding the Fourth Proportional to 30,129.30, 41,578.79 and 16,700.72

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Solution

The fourth proportional to 30,129.30, 41,578.79 and 16,700.72 is: 23,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,129.30 : 41,578.79 = 16,700.72 : x
  2. Step 2: Convert to fraction form
    30,129.30/41,578.79 = 16,700.72/x
  3. Step 3: Cross multiply
    30,129.30x = 41,578.79 × 16,700.72
  4. Step 4: Simplify right side
    30,129.30x = 694,395,438.33
  5. Step 5: Solve for x
    x = 694,395,438.33/30,129.30
  6. Step 6: Final answer
    x = 23,047.18

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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.