Home / 39,287.33-54,217.67-21,383.49

Finding the Fourth Proportional to 39,287.33, 54,217.67 and 21,383.49

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Solution

The fourth proportional to 39,287.33, 54,217.67 and 21,383.49 is: 29,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,287.33 : 54,217.67 = 21,383.49 : x
  2. Step 2: Convert to fraction form
    39,287.33/54,217.67 = 21,383.49/x
  3. Step 3: Cross multiply
    39,287.33x = 54,217.67 × 21,383.49
  4. Step 4: Simplify right side
    39,287.33x = 1,159,363,100.67
  5. Step 5: Solve for x
    x = 1,159,363,100.67/39,287.33
  6. Step 6: Final answer
    x = 29,509.85

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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.