Home / 30,540.11-42,144.77-16,927.92

Finding the Fourth Proportional to 30,540.11, 42,144.77 and 16,927.92

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Solution

The fourth proportional to 30,540.11, 42,144.77 and 16,927.92 is: 23,360.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,540.11 : 42,144.77 = 16,927.92 : x
  2. Step 2: Convert to fraction form
    30,540.11/42,144.77 = 16,927.92/x
  3. Step 3: Cross multiply
    30,540.11x = 42,144.77 × 16,927.92
  4. Step 4: Simplify right side
    30,540.11x = 713,423,337.30
  5. Step 5: Solve for x
    x = 713,423,337.30/30,540.11
  6. Step 6: Final answer
    x = 23,360.21

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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.