Home / 20,995.68-31,481.40-10,444.23

Finding the Fourth Proportional to 20,995.68, 31,481.40 and 10,444.23

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Solution

The fourth proportional to 20,995.68, 31,481.40 and 10,444.23 is: 15,660.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.68 : 31,481.40 = 10,444.23 : x
  2. Step 2: Convert to fraction form
    20,995.68/31,481.40 = 10,444.23/x
  3. Step 3: Cross multiply
    20,995.68x = 31,481.40 × 10,444.23
  4. Step 4: Simplify right side
    20,995.68x = 328,798,982.32
  5. Step 5: Solve for x
    x = 328,798,982.32/20,995.68
  6. Step 6: Final answer
    x = 15,660.32

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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.