Home / 30,589.76-42,214.15-17,161.30

Finding the Fourth Proportional to 30,589.76, 42,214.15 and 17,161.30

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Solution

The fourth proportional to 30,589.76, 42,214.15 and 17,161.30 is: 23,682.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,589.76 : 42,214.15 = 17,161.30 : x
  2. Step 2: Convert to fraction form
    30,589.76/42,214.15 = 17,161.30/x
  3. Step 3: Cross multiply
    30,589.76x = 42,214.15 × 17,161.30
  4. Step 4: Simplify right side
    30,589.76x = 724,449,692.40
  5. Step 5: Solve for x
    x = 724,449,692.40/30,589.76
  6. Step 6: Final answer
    x = 23,682.75

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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.