Home / 30,380.21-41,928.48-17,630.66

Finding the Fourth Proportional to 30,380.21, 41,928.48 and 17,630.66

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Solution

The fourth proportional to 30,380.21, 41,928.48 and 17,630.66 is: 24,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,380.21 : 41,928.48 = 17,630.66 : x
  2. Step 2: Convert to fraction form
    30,380.21/41,928.48 = 17,630.66/x
  3. Step 3: Cross multiply
    30,380.21x = 41,928.48 × 17,630.66
  4. Step 4: Simplify right side
    30,380.21x = 739,226,775.20
  5. Step 5: Solve for x
    x = 739,226,775.20/30,380.21
  6. Step 6: Final answer
    x = 24,332.51

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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.