Home / 30,667.86-42,314.13-17,236.44

Finding the Fourth Proportional to 30,667.86, 42,314.13 and 17,236.44

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Solution

The fourth proportional to 30,667.86, 42,314.13 and 17,236.44 is: 23,782.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,667.86 : 42,314.13 = 17,236.44 : x
  2. Step 2: Convert to fraction form
    30,667.86/42,314.13 = 17,236.44/x
  3. Step 3: Cross multiply
    30,667.86x = 42,314.13 × 17,236.44
  4. Step 4: Simplify right side
    30,667.86x = 729,344,962.90
  5. Step 5: Solve for x
    x = 729,344,962.90/30,667.86
  6. Step 6: Final answer
    x = 23,782.06

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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.