Home / 30,522.75-42,117.84-17,778.73

Finding the Fourth Proportional to 30,522.75, 42,117.84 and 17,778.73

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Solution

The fourth proportional to 30,522.75, 42,117.84 and 17,778.73 is: 24,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,522.75 : 42,117.84 = 17,778.73 : x
  2. Step 2: Convert to fraction form
    30,522.75/42,117.84 = 17,778.73/x
  3. Step 3: Cross multiply
    30,522.75x = 42,117.84 × 17,778.73
  4. Step 4: Simplify right side
    30,522.75x = 748,801,705.54
  5. Step 5: Solve for x
    x = 748,801,705.54/30,522.75
  6. Step 6: Final answer
    x = 24,532.58

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Half scale
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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.