Home / 39,429.12-54,414.72-22,661.76

Finding the Fourth Proportional to 39,429.12, 54,414.72 and 22,661.76

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Solution

The fourth proportional to 39,429.12, 54,414.72 and 22,661.76 is: 31,274.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429.12 : 54,414.72 = 22,661.76 : x
  2. Step 2: Convert to fraction form
    39,429.12/54,414.72 = 22,661.76/x
  3. Step 3: Cross multiply
    39,429.12x = 54,414.72 × 22,661.76
  4. Step 4: Simplify right side
    39,429.12x = 1,233,133,325.11
  5. Step 5: Solve for x
    x = 1,233,133,325.11/39,429.12
  6. Step 6: Final answer
    x = 31,274.69

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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.