Home / 31,731.20-43,810.44-28,363.22

Finding the Fourth Proportional to 31,731.20, 43,810.44 and 28,363.22

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Solution

The fourth proportional to 31,731.20, 43,810.44 and 28,363.22 is: 39,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.20 : 43,810.44 = 28,363.22 : x
  2. Step 2: Convert to fraction form
    31,731.20/43,810.44 = 28,363.22/x
  3. Step 3: Cross multiply
    31,731.20x = 43,810.44 × 28,363.22
  4. Step 4: Simplify right side
    31,731.20x = 1,242,605,148.02
  5. Step 5: Solve for x
    x = 1,242,605,148.02/31,731.20
  6. Step 6: Final answer
    x = 39,160.36

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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.