Home / 31,844.24-43,897.65-20,511.48

Finding the Fourth Proportional to 31,844.24, 43,897.65 and 20,511.48

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Solution

The fourth proportional to 31,844.24, 43,897.65 and 20,511.48 is: 28,275.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,844.24 : 43,897.65 = 20,511.48 : x
  2. Step 2: Convert to fraction form
    31,844.24/43,897.65 = 20,511.48/x
  3. Step 3: Cross multiply
    31,844.24x = 43,897.65 × 20,511.48
  4. Step 4: Simplify right side
    31,844.24x = 900,405,610.80
  5. Step 5: Solve for x
    x = 900,405,610.80/31,844.24
  6. Step 6: Final answer
    x = 28,275.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.