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Finding the Fourth Proportional to 40,603.05, 60,915.08 and 12,522.48

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Solution

The fourth proportional to 40,603.05, 60,915.08 and 12,522.48 is: 18,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,603.05 : 60,915.08 = 12,522.48 : x
  2. Step 2: Convert to fraction form
    40,603.05/60,915.08 = 12,522.48/x
  3. Step 3: Cross multiply
    40,603.05x = 60,915.08 × 12,522.48
  4. Step 4: Simplify right side
    40,603.05x = 762,807,656.10
  5. Step 5: Solve for x
    x = 762,807,656.10/40,603.05
  6. Step 6: Final answer
    x = 18,786.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.