Home / 39,969.20-55,157.68-22,064.36

Finding the Fourth Proportional to 39,969.20, 55,157.68 and 22,064.36

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Solution

The fourth proportional to 39,969.20, 55,157.68 and 22,064.36 is: 30,448.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,969.20 : 55,157.68 = 22,064.36 : x
  2. Step 2: Convert to fraction form
    39,969.20/55,157.68 = 22,064.36/x
  3. Step 3: Cross multiply
    39,969.20x = 55,157.68 × 22,064.36
  4. Step 4: Simplify right side
    39,969.20x = 1,217,018,535.96
  5. Step 5: Solve for x
    x = 1,217,018,535.96/39,969.20
  6. Step 6: Final answer
    x = 30,448.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.