Home / 31,844.57-43,933.25-20,513.18

Finding the Fourth Proportional to 31,844.57, 43,933.25 and 20,513.18

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Solution

The fourth proportional to 31,844.57, 43,933.25 and 20,513.18 is: 28,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,844.57 : 43,933.25 = 20,513.18 : x
  2. Step 2: Convert to fraction form
    31,844.57/43,933.25 = 20,513.18/x
  3. Step 3: Cross multiply
    31,844.57x = 43,933.25 × 20,513.18
  4. Step 4: Simplify right side
    31,844.57x = 901,210,826.35
  5. Step 5: Solve for x
    x = 901,210,826.35/31,844.57
  6. Step 6: Final answer
    x = 28,300.30

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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.