Home / 18,116.33-27,142.56-15,870.20

Finding the Fourth Proportional to 18,116.33, 27,142.56 and 15,870.20

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Solution

The fourth proportional to 18,116.33, 27,142.56 and 15,870.20 is: 23,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.33 : 27,142.56 = 15,870.20 : x
  2. Step 2: Convert to fraction form
    18,116.33/27,142.56 = 15,870.20/x
  3. Step 3: Cross multiply
    18,116.33x = 27,142.56 × 15,870.20
  4. Step 4: Simplify right side
    18,116.33x = 430,757,720.00
  5. Step 5: Solve for x
    x = 430,757,720.00/18,116.33
  6. Step 6: Final answer
    x = 23,777.32

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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.