Home / 30,692.79-42,354.36-17,264.61

Finding the Fourth Proportional to 30,692.79, 42,354.36 and 17,264.61

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Solution

The fourth proportional to 30,692.79, 42,354.36 and 17,264.61 is: 23,824.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,692.79 : 42,354.36 = 17,264.61 : x
  2. Step 2: Convert to fraction form
    30,692.79/42,354.36 = 17,264.61/x
  3. Step 3: Cross multiply
    30,692.79x = 42,354.36 × 17,264.61
  4. Step 4: Simplify right side
    30,692.79x = 731,231,507.20
  5. Step 5: Solve for x
    x = 731,231,507.20/30,692.79
  6. Step 6: Final answer
    x = 23,824.21

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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.