Home / 39,424.52-54,405.46-21,519.64

Finding the Fourth Proportional to 39,424.52, 54,405.46 and 21,519.64

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Solution

The fourth proportional to 39,424.52, 54,405.46 and 21,519.64 is: 29,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,424.52 : 54,405.46 = 21,519.64 : x
  2. Step 2: Convert to fraction form
    39,424.52/54,405.46 = 21,519.64/x
  3. Step 3: Cross multiply
    39,424.52x = 54,405.46 × 21,519.64
  4. Step 4: Simplify right side
    39,424.52x = 1,170,785,913.23
  5. Step 5: Solve for x
    x = 1,170,785,913.23/39,424.52
  6. Step 6: Final answer
    x = 29,696.90

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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.