Home / 31,991.82-44,162.87-20,666.84

Finding the Fourth Proportional to 31,991.82, 44,162.87 and 20,666.84

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Solution

The fourth proportional to 31,991.82, 44,162.87 and 20,666.84 is: 28,529.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,991.82 : 44,162.87 = 20,666.84 : x
  2. Step 2: Convert to fraction form
    31,991.82/44,162.87 = 20,666.84/x
  3. Step 3: Cross multiply
    31,991.82x = 44,162.87 × 20,666.84
  4. Step 4: Simplify right side
    31,991.82x = 912,706,968.23
  5. Step 5: Solve for x
    x = 912,706,968.23/31,991.82
  6. Step 6: Final answer
    x = 28,529.39

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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.