Home / 55,352.97-82,980.09-20,284.38

Finding the Fourth Proportional to 55,352.97, 82,980.09 and 20,284.38

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Solution

The fourth proportional to 55,352.97, 82,980.09 and 20,284.38 is: 30,408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,352.97 : 82,980.09 = 20,284.38 : x
  2. Step 2: Convert to fraction form
    55,352.97/82,980.09 = 20,284.38/x
  3. Step 3: Cross multiply
    55,352.97x = 82,980.09 × 20,284.38
  4. Step 4: Simplify right side
    55,352.97x = 1,683,199,677.99
  5. Step 5: Solve for x
    x = 1,683,199,677.99/55,352.97
  6. Step 6: Final answer
    x = 30,408.48

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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.