Home / 21,119.66-31,676.61-5,535.98

Finding the Fourth Proportional to 21,119.66, 31,676.61 and 5,535.98

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Solution

The fourth proportional to 21,119.66, 31,676.61 and 5,535.98 is: 8,303.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,119.66 : 31,676.61 = 5,535.98 : x
  2. Step 2: Convert to fraction form
    21,119.66/31,676.61 = 5,535.98/x
  3. Step 3: Cross multiply
    21,119.66x = 31,676.61 × 5,535.98
  4. Step 4: Simplify right side
    21,119.66x = 175,361,079.43
  5. Step 5: Solve for x
    x = 175,361,079.43/21,119.66
  6. Step 6: Final answer
    x = 8,303.22

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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.