Home / 39,388.04-54,355.92-21,483

Finding the Fourth Proportional to 39,388.04, 54,355.92 and 21,483

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Solution

The fourth proportional to 39,388.04, 54,355.92 and 21,483 is: 29,646.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,388.04 : 54,355.92 = 21,483 : x
  2. Step 2: Convert to fraction form
    39,388.04/54,355.92 = 21,483/x
  3. Step 3: Cross multiply
    39,388.04x = 54,355.92 × 21,483
  4. Step 4: Simplify right side
    39,388.04x = 1,167,728,229.36
  5. Step 5: Solve for x
    x = 1,167,728,229.36/39,388.04
  6. Step 6: Final answer
    x = 29,646.77

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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.