Home / 30,164.52-45,268.67-21,221.04

Finding the Fourth Proportional to 30,164.52, 45,268.67 and 21,221.04

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Solution

The fourth proportional to 30,164.52, 45,268.67 and 21,221.04 is: 31,846.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,164.52 : 45,268.67 = 21,221.04 : x
  2. Step 2: Convert to fraction form
    30,164.52/45,268.67 = 21,221.04/x
  3. Step 3: Cross multiply
    30,164.52x = 45,268.67 × 21,221.04
  4. Step 4: Simplify right side
    30,164.52x = 960,648,256.82
  5. Step 5: Solve for x
    x = 960,648,256.82/30,164.52
  6. Step 6: Final answer
    x = 31,846.96

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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.