Home / 55,319.80-82,923-21,994.78

Finding the Fourth Proportional to 55,319.80, 82,923 and 21,994.78

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Solution

The fourth proportional to 55,319.80, 82,923 and 21,994.78 is: 32,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,319.80 : 82,923 = 21,994.78 : x
  2. Step 2: Convert to fraction form
    55,319.80/82,923 = 21,994.78/x
  3. Step 3: Cross multiply
    55,319.80x = 82,923 × 21,994.78
  4. Step 4: Simplify right side
    55,319.80x = 1,823,873,141.94
  5. Step 5: Solve for x
    x = 1,823,873,141.94/55,319.80
  6. Step 6: Final answer
    x = 32,969.63

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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.