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Finding the Fourth Proportional to 36,578.70, 54,868.05 and 21,804.30

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Solution

The fourth proportional to 36,578.70, 54,868.05 and 21,804.30 is: 32,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,578.70 : 54,868.05 = 21,804.30 : x
  2. Step 2: Convert to fraction form
    36,578.70/54,868.05 = 21,804.30/x
  3. Step 3: Cross multiply
    36,578.70x = 54,868.05 × 21,804.30
  4. Step 4: Simplify right side
    36,578.70x = 1,196,359,422.62
  5. Step 5: Solve for x
    x = 1,196,359,422.62/36,578.70
  6. Step 6: Final answer
    x = 32,706.45

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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.