Home / 39,223.37-54,127.94-21,318.48

Finding the Fourth Proportional to 39,223.37, 54,127.94 and 21,318.48

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Solution

The fourth proportional to 39,223.37, 54,127.94 and 21,318.48 is: 29,419.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,223.37 : 54,127.94 = 21,318.48 : x
  2. Step 2: Convert to fraction form
    39,223.37/54,127.94 = 21,318.48/x
  3. Step 3: Cross multiply
    39,223.37x = 54,127.94 × 21,318.48
  4. Step 4: Simplify right side
    39,223.37x = 1,153,925,299.74
  5. Step 5: Solve for x
    x = 1,153,925,299.74/39,223.37
  6. Step 6: Final answer
    x = 29,419.33

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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.