Home / 28,133.78-38,806.33-18,046.25

Finding the Fourth Proportional to 28,133.78, 38,806.33 and 18,046.25

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Solution

The fourth proportional to 28,133.78, 38,806.33 and 18,046.25 is: 24,892.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.78 : 38,806.33 = 18,046.25 : x
  2. Step 2: Convert to fraction form
    28,133.78/38,806.33 = 18,046.25/x
  3. Step 3: Cross multiply
    28,133.78x = 38,806.33 × 18,046.25
  4. Step 4: Simplify right side
    28,133.78x = 700,308,448.50
  5. Step 5: Solve for x
    x = 700,308,448.50/28,133.78
  6. Step 6: Final answer
    x = 24,892.09

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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.