Home / 55,619.33-83,428.12-13,499.76

Finding the Fourth Proportional to 55,619.33, 83,428.12 and 13,499.76

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Solution

The fourth proportional to 55,619.33, 83,428.12 and 13,499.76 is: 20,249.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,619.33 : 83,428.12 = 13,499.76 : x
  2. Step 2: Convert to fraction form
    55,619.33/83,428.12 = 13,499.76/x
  3. Step 3: Cross multiply
    55,619.33x = 83,428.12 × 13,499.76
  4. Step 4: Simplify right side
    55,619.33x = 1,126,259,738.32
  5. Step 5: Solve for x
    x = 1,126,259,738.32/55,619.33
  6. Step 6: Final answer
    x = 20,249.43

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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.