Home / 30,603.44-42,229.28-17,171.92

Finding the Fourth Proportional to 30,603.44, 42,229.28 and 17,171.92

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Solution

The fourth proportional to 30,603.44, 42,229.28 and 17,171.92 is: 23,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,603.44 : 42,229.28 = 17,171.92 : x
  2. Step 2: Convert to fraction form
    30,603.44/42,229.28 = 17,171.92/x
  3. Step 3: Cross multiply
    30,603.44x = 42,229.28 × 17,171.92
  4. Step 4: Simplify right side
    30,603.44x = 725,157,817.82
  5. Step 5: Solve for x
    x = 725,157,817.82/30,603.44
  6. Step 6: Final answer
    x = 23,695.30

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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.