Home / 30,692.12-42,353.08-18,753.53

Finding the Fourth Proportional to 30,692.12, 42,353.08 and 18,753.53

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Solution

The fourth proportional to 30,692.12, 42,353.08 and 18,753.53 is: 25,878.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,692.12 : 42,353.08 = 18,753.53 : x
  2. Step 2: Convert to fraction form
    30,692.12/42,353.08 = 18,753.53/x
  3. Step 3: Cross multiply
    30,692.12x = 42,353.08 × 18,753.53
  4. Step 4: Simplify right side
    30,692.12x = 794,269,497.72
  5. Step 5: Solve for x
    x = 794,269,497.72/30,692.12
  6. Step 6: Final answer
    x = 25,878.62

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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.