Home / 30,171.67-45,257.01-9,110.86

Finding the Fourth Proportional to 30,171.67, 45,257.01 and 9,110.86

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Solution

The fourth proportional to 30,171.67, 45,257.01 and 9,110.86 is: 13,666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,171.67 : 45,257.01 = 9,110.86 : x
  2. Step 2: Convert to fraction form
    30,171.67/45,257.01 = 9,110.86/x
  3. Step 3: Cross multiply
    30,171.67x = 45,257.01 × 9,110.86
  4. Step 4: Simplify right side
    30,171.67x = 412,330,282.13
  5. Step 5: Solve for x
    x = 412,330,282.13/30,171.67
  6. Step 6: Final answer
    x = 13,666.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.