Home / 30,164.72-45,247.14-9,110.79

Finding the Fourth Proportional to 30,164.72, 45,247.14 and 9,110.79

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Solution

The fourth proportional to 30,164.72, 45,247.14 and 9,110.79 is: 13,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,164.72 : 45,247.14 = 9,110.79 : x
  2. Step 2: Convert to fraction form
    30,164.72/45,247.14 = 9,110.79/x
  3. Step 3: Cross multiply
    30,164.72x = 45,247.14 × 9,110.79
  4. Step 4: Simplify right side
    30,164.72x = 412,237,190.64
  5. Step 5: Solve for x
    x = 412,237,190.64/30,164.72
  6. Step 6: Final answer
    x = 13,666.21

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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.