Home / 39,974.40-55,164.66-22,070.64

Finding the Fourth Proportional to 39,974.40, 55,164.66 and 22,070.64

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Solution

The fourth proportional to 39,974.40, 55,164.66 and 22,070.64 is: 30,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,974.40 : 55,164.66 = 22,070.64 : x
  2. Step 2: Convert to fraction form
    39,974.40/55,164.66 = 22,070.64/x
  3. Step 3: Cross multiply
    39,974.40x = 55,164.66 × 22,070.64
  4. Step 4: Simplify right side
    39,974.40x = 1,217,519,351.58
  5. Step 5: Solve for x
    x = 1,217,519,351.58/39,974.40
  6. Step 6: Final answer
    x = 30,457.48

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1.5x scale

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.