Home / 18,805.07-28,208.38-15,512.03

Finding the Fourth Proportional to 18,805.07, 28,208.38 and 15,512.03

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Solution

The fourth proportional to 18,805.07, 28,208.38 and 15,512.03 is: 23,268.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805.07 : 28,208.38 = 15,512.03 : x
  2. Step 2: Convert to fraction form
    18,805.07/28,208.38 = 15,512.03/x
  3. Step 3: Cross multiply
    18,805.07x = 28,208.38 × 15,512.03
  4. Step 4: Simplify right side
    18,805.07x = 437,569,056.99
  5. Step 5: Solve for x
    x = 437,569,056.99/18,805.07
  6. Step 6: Final answer
    x = 23,268.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.