Home / 39,324.12-54,267-21,419.07

Finding the Fourth Proportional to 39,324.12, 54,267 and 21,419.07

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Solution

The fourth proportional to 39,324.12, 54,267 and 21,419.07 is: 29,558.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,324.12 : 54,267 = 21,419.07 : x
  2. Step 2: Convert to fraction form
    39,324.12/54,267 = 21,419.07/x
  3. Step 3: Cross multiply
    39,324.12x = 54,267 × 21,419.07
  4. Step 4: Simplify right side
    39,324.12x = 1,162,348,671.69
  5. Step 5: Solve for x
    x = 1,162,348,671.69/39,324.12
  6. Step 6: Final answer
    x = 29,558.16

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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.