Home / 39,556.42-54,586.92-21,651.40

Finding the Fourth Proportional to 39,556.42, 54,586.92 and 21,651.40

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Solution

The fourth proportional to 39,556.42, 54,586.92 and 21,651.40 is: 29,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556.42 : 54,586.92 = 21,651.40 : x
  2. Step 2: Convert to fraction form
    39,556.42/54,586.92 = 21,651.40/x
  3. Step 3: Cross multiply
    39,556.42x = 54,586.92 × 21,651.40
  4. Step 4: Simplify right side
    39,556.42x = 1,181,883,239.69
  5. Step 5: Solve for x
    x = 1,181,883,239.69/39,556.42
  6. Step 6: Final answer
    x = 29,878.42

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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.