Home / 30,167.02-45,272.42-21,223.54

Finding the Fourth Proportional to 30,167.02, 45,272.42 and 21,223.54

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Solution

The fourth proportional to 30,167.02, 45,272.42 and 21,223.54 is: 31,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,167.02 : 45,272.42 = 21,223.54 : x
  2. Step 2: Convert to fraction form
    30,167.02/45,272.42 = 21,223.54/x
  3. Step 3: Cross multiply
    30,167.02x = 45,272.42 × 21,223.54
  4. Step 4: Simplify right side
    30,167.02x = 960,841,016.77
  5. Step 5: Solve for x
    x = 960,841,016.77/30,167.02
  6. Step 6: Final answer
    x = 31,850.71

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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.