Home / 30,551.60-42,163.00-17,122.21

Finding the Fourth Proportional to 30,551.60, 42,163.00 and 17,122.21

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Solution

The fourth proportional to 30,551.60, 42,163.00 and 17,122.21 is: 23,629.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,551.60 : 42,163.00 = 17,122.21 : x
  2. Step 2: Convert to fraction form
    30,551.60/42,163.00 = 17,122.21/x
  3. Step 3: Cross multiply
    30,551.60x = 42,163.00 × 17,122.21
  4. Step 4: Simplify right side
    30,551.60x = 721,923,592.02
  5. Step 5: Solve for x
    x = 721,923,592.02/30,551.60
  6. Step 6: Final answer
    x = 23,629.65

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Double scale
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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.