Home / 39,969.70-55,158.64-22,064.72

Finding the Fourth Proportional to 39,969.70, 55,158.64 and 22,064.72

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Solution

The fourth proportional to 39,969.70, 55,158.64 and 22,064.72 is: 30,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,969.70 : 55,158.64 = 22,064.72 : x
  2. Step 2: Convert to fraction form
    39,969.70/55,158.64 = 22,064.72/x
  3. Step 3: Cross multiply
    39,969.70x = 55,158.64 × 22,064.72
  4. Step 4: Simplify right side
    39,969.70x = 1,217,059,926.49
  5. Step 5: Solve for x
    x = 1,217,059,926.49/39,969.70
  6. Step 6: Final answer
    x = 30,449.56

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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.