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Finding the Fourth Proportional to 35,394.80, 48,845.97 and 20,290.32

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Solution

The fourth proportional to 35,394.80, 48,845.97 and 20,290.32 is: 28,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,394.80 : 48,845.97 = 20,290.32 : x
  2. Step 2: Convert to fraction form
    35,394.80/48,845.97 = 20,290.32/x
  3. Step 3: Cross multiply
    35,394.80x = 48,845.97 × 20,290.32
  4. Step 4: Simplify right side
    35,394.80x = 991,100,362.01
  5. Step 5: Solve for x
    x = 991,100,362.01/35,394.80
  6. Step 6: Final answer
    x = 28,001.30

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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.