Home / 39,683.42-54,760.17-21,775.58

Finding the Fourth Proportional to 39,683.42, 54,760.17 and 21,775.58

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Solution

The fourth proportional to 39,683.42, 54,760.17 and 21,775.58 is: 30,048.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,683.42 : 54,760.17 = 21,775.58 : x
  2. Step 2: Convert to fraction form
    39,683.42/54,760.17 = 21,775.58/x
  3. Step 3: Cross multiply
    39,683.42x = 54,760.17 × 21,775.58
  4. Step 4: Simplify right side
    39,683.42x = 1,192,434,462.65
  5. Step 5: Solve for x
    x = 1,192,434,462.65/39,683.42
  6. Step 6: Final answer
    x = 30,048.68

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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.