Home / 18,187.54-27,120.69-15,975.43

Finding the Fourth Proportional to 18,187.54, 27,120.69 and 15,975.43

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Solution

The fourth proportional to 18,187.54, 27,120.69 and 15,975.43 is: 23,822.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.54 : 27,120.69 = 15,975.43 : x
  2. Step 2: Convert to fraction form
    18,187.54/27,120.69 = 15,975.43/x
  3. Step 3: Cross multiply
    18,187.54x = 27,120.69 × 15,975.43
  4. Step 4: Simplify right side
    18,187.54x = 433,264,549.45
  5. Step 5: Solve for x
    x = 433,264,549.45/18,187.54
  6. Step 6: Final answer
    x = 23,822.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.