Home / 39,665.59-54,738.93-21,760.14

Finding the Fourth Proportional to 39,665.59, 54,738.93 and 21,760.14

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Solution

The fourth proportional to 39,665.59, 54,738.93 and 21,760.14 is: 30,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,665.59 : 54,738.93 = 21,760.14 : x
  2. Step 2: Convert to fraction form
    39,665.59/54,738.93 = 21,760.14/x
  3. Step 3: Cross multiply
    39,665.59x = 54,738.93 × 21,760.14
  4. Step 4: Simplify right side
    39,665.59x = 1,191,126,506.56
  5. Step 5: Solve for x
    x = 1,191,126,506.56/39,665.59
  6. Step 6: Final answer
    x = 30,029.21

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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.