Home / 39,576.42-54,615.54-21,427.33

Finding the Fourth Proportional to 39,576.42, 54,615.54 and 21,427.33

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Solution

The fourth proportional to 39,576.42, 54,615.54 and 21,427.33 is: 29,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,576.42 : 54,615.54 = 21,427.33 : x
  2. Step 2: Convert to fraction form
    39,576.42/54,615.54 = 21,427.33/x
  3. Step 3: Cross multiply
    39,576.42x = 54,615.54 × 21,427.33
  4. Step 4: Simplify right side
    39,576.42x = 1,170,265,198.71
  5. Step 5: Solve for x
    x = 1,170,265,198.71/39,576.42
  6. Step 6: Final answer
    x = 29,569.76

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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.