Home / 30,961.53-42,734.57-17,540.70

Finding the Fourth Proportional to 30,961.53, 42,734.57 and 17,540.70

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Solution

The fourth proportional to 30,961.53, 42,734.57 and 17,540.70 is: 24,210.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,961.53 : 42,734.57 = 17,540.70 : x
  2. Step 2: Convert to fraction form
    30,961.53/42,734.57 = 17,540.70/x
  3. Step 3: Cross multiply
    30,961.53x = 42,734.57 × 17,540.70
  4. Step 4: Simplify right side
    30,961.53x = 749,594,184.30
  5. Step 5: Solve for x
    x = 749,594,184.30/30,961.53
  6. Step 6: Final answer
    x = 24,210.50

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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.