Home / 30,619.22-42,256.96-17,191.35

Finding the Fourth Proportional to 30,619.22, 42,256.96 and 17,191.35

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Solution

The fourth proportional to 30,619.22, 42,256.96 and 17,191.35 is: 23,725.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.22 : 42,256.96 = 17,191.35 : x
  2. Step 2: Convert to fraction form
    30,619.22/42,256.96 = 17,191.35/x
  3. Step 3: Cross multiply
    30,619.22x = 42,256.96 × 17,191.35
  4. Step 4: Simplify right side
    30,619.22x = 726,454,189.30
  5. Step 5: Solve for x
    x = 726,454,189.30/30,619.22
  6. Step 6: Final answer
    x = 23,725.43

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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.