Home / 31,705.22-47,525.42-20,634.14

Finding the Fourth Proportional to 31,705.22, 47,525.42 and 20,634.14

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Solution

The fourth proportional to 31,705.22, 47,525.42 and 20,634.14 is: 30,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,705.22 : 47,525.42 = 20,634.14 : x
  2. Step 2: Convert to fraction form
    31,705.22/47,525.42 = 20,634.14/x
  3. Step 3: Cross multiply
    31,705.22x = 47,525.42 × 20,634.14
  4. Step 4: Simplify right side
    31,705.22x = 980,646,169.84
  5. Step 5: Solve for x
    x = 980,646,169.84/31,705.22
  6. Step 6: Final answer
    x = 30,930.12

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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.