Home / 30,198.67-41,667.45-18,261.76

Finding the Fourth Proportional to 30,198.67, 41,667.45 and 18,261.76

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Solution

The fourth proportional to 30,198.67, 41,667.45 and 18,261.76 is: 25,197.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,198.67 : 41,667.45 = 18,261.76 : x
  2. Step 2: Convert to fraction form
    30,198.67/41,667.45 = 18,261.76/x
  3. Step 3: Cross multiply
    30,198.67x = 41,667.45 × 18,261.76
  4. Step 4: Simplify right side
    30,198.67x = 760,920,971.71
  5. Step 5: Solve for x
    x = 760,920,971.71/30,198.67
  6. Step 6: Final answer
    x = 25,197.17

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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.