Home / 30,734.10-42,414.64-18,793.70

Finding the Fourth Proportional to 30,734.10, 42,414.64 and 18,793.70

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Solution

The fourth proportional to 30,734.10, 42,414.64 and 18,793.70 is: 25,936.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,734.10 : 42,414.64 = 18,793.70 : x
  2. Step 2: Convert to fraction form
    30,734.10/42,414.64 = 18,793.70/x
  3. Step 3: Cross multiply
    30,734.10x = 42,414.64 × 18,793.70
  4. Step 4: Simplify right side
    30,734.10x = 797,127,760.71
  5. Step 5: Solve for x
    x = 797,127,760.71/30,734.10
  6. Step 6: Final answer
    x = 25,936.26

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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.