Home / 39,223.82-54,129.42-21,318.82

Finding the Fourth Proportional to 39,223.82, 54,129.42 and 21,318.82

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Solution

The fourth proportional to 39,223.82, 54,129.42 and 21,318.82 is: 29,420.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,223.82 : 54,129.42 = 21,318.82 : x
  2. Step 2: Convert to fraction form
    39,223.82/54,129.42 = 21,318.82/x
  3. Step 3: Cross multiply
    39,223.82x = 54,129.42 × 21,318.82
  4. Step 4: Simplify right side
    39,223.82x = 1,153,975,226.36
  5. Step 5: Solve for x
    x = 1,153,975,226.36/39,223.82
  6. Step 6: Final answer
    x = 29,420.26

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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.