Home / 21,228.27-31,844.02-5,645.49

Finding the Fourth Proportional to 21,228.27, 31,844.02 and 5,645.49

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Solution

The fourth proportional to 21,228.27, 31,844.02 and 5,645.49 is: 8,468.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.27 : 31,844.02 = 5,645.49 : x
  2. Step 2: Convert to fraction form
    21,228.27/31,844.02 = 5,645.49/x
  3. Step 3: Cross multiply
    21,228.27x = 31,844.02 × 5,645.49
  4. Step 4: Simplify right side
    21,228.27x = 179,775,096.47
  5. Step 5: Solve for x
    x = 179,775,096.47/21,228.27
  6. Step 6: Final answer
    x = 8,468.66

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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.