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Finding the Fourth Proportional to 30,156, 41,615.28 and 17,578.32

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Solution

The fourth proportional to 30,156, 41,615.28 and 17,578.32 is: 24,258.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156 : 41,615.28 = 17,578.32 : x
  2. Step 2: Convert to fraction form
    30,156/41,615.28 = 17,578.32/x
  3. Step 3: Cross multiply
    30,156x = 41,615.28 × 17,578.32
  4. Step 4: Simplify right side
    30,156x = 731,526,708.73
  5. Step 5: Solve for x
    x = 731,526,708.73/30,156
  6. Step 6: Final answer
    x = 24,258.08

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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.