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Finding the Fourth Proportional to 35,281.44, 48,692.88 and 20,377.44

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Solution

The fourth proportional to 35,281.44, 48,692.88 and 20,377.44 is: 28,123.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,281.44 : 48,692.88 = 20,377.44 : x
  2. Step 2: Convert to fraction form
    35,281.44/48,692.88 = 20,377.44/x
  3. Step 3: Cross multiply
    35,281.44x = 48,692.88 × 20,377.44
  4. Step 4: Simplify right side
    35,281.44x = 992,236,240.63
  5. Step 5: Solve for x
    x = 992,236,240.63/35,281.44
  6. Step 6: Final answer
    x = 28,123.46

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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.