Home / 30,690.34-42,352.25-17,261.59

Finding the Fourth Proportional to 30,690.34, 42,352.25 and 17,261.59

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Solution

The fourth proportional to 30,690.34, 42,352.25 and 17,261.59 is: 23,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690.34 : 42,352.25 = 17,261.59 : x
  2. Step 2: Convert to fraction form
    30,690.34/42,352.25 = 17,261.59/x
  3. Step 3: Cross multiply
    30,690.34x = 42,352.25 × 17,261.59
  4. Step 4: Simplify right side
    30,690.34x = 731,067,175.08
  5. Step 5: Solve for x
    x = 731,067,175.08/30,690.34
  6. Step 6: Final answer
    x = 23,820.76

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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.