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Finding the Fourth Proportional to 42,599.44, 63,938.49 and 21,554.29

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Solution

The fourth proportional to 42,599.44, 63,938.49 and 21,554.29 is: 32,351.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,599.44 : 63,938.49 = 21,554.29 : x
  2. Step 2: Convert to fraction form
    42,599.44/63,938.49 = 21,554.29/x
  3. Step 3: Cross multiply
    42,599.44x = 63,938.49 × 21,554.29
  4. Step 4: Simplify right side
    42,599.44x = 1,378,148,755.62
  5. Step 5: Solve for x
    x = 1,378,148,755.62/42,599.44
  6. Step 6: Final answer
    x = 32,351.34

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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.