Home / 39,388.46-54,354.36-21,483.56

Finding the Fourth Proportional to 39,388.46, 54,354.36 and 21,483.56

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Solution

The fourth proportional to 39,388.46, 54,354.36 and 21,483.56 is: 29,646.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,388.46 : 54,354.36 = 21,483.56 : x
  2. Step 2: Convert to fraction form
    39,388.46/54,354.36 = 21,483.56/x
  3. Step 3: Cross multiply
    39,388.46x = 54,354.36 × 21,483.56
  4. Step 4: Simplify right side
    39,388.46x = 1,167,725,154.32
  5. Step 5: Solve for x
    x = 1,167,725,154.32/39,388.46
  6. Step 6: Final answer
    x = 29,646.38

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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.