Home / 55,371.84-83,057.92-13,818.80

Finding the Fourth Proportional to 55,371.84, 83,057.92 and 13,818.80

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Solution

The fourth proportional to 55,371.84, 83,057.92 and 13,818.80 is: 20,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,371.84 : 83,057.92 = 13,818.80 : x
  2. Step 2: Convert to fraction form
    55,371.84/83,057.92 = 13,818.80/x
  3. Step 3: Cross multiply
    55,371.84x = 83,057.92 × 13,818.80
  4. Step 4: Simplify right side
    55,371.84x = 1,147,760,784.90
  5. Step 5: Solve for x
    x = 1,147,760,784.90/55,371.84
  6. Step 6: Final answer
    x = 20,728.24

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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.