Home / 18,528.31-27,760.11-15,428.26

Finding the Fourth Proportional to 18,528.31, 27,760.11 and 15,428.26

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Solution

The fourth proportional to 18,528.31, 27,760.11 and 15,428.26 is: 23,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.31 : 27,760.11 = 15,428.26 : x
  2. Step 2: Convert to fraction form
    18,528.31/27,760.11 = 15,428.26/x
  3. Step 3: Cross multiply
    18,528.31x = 27,760.11 × 15,428.26
  4. Step 4: Simplify right side
    18,528.31x = 428,290,194.71
  5. Step 5: Solve for x
    x = 428,290,194.71/18,528.31
  6. Step 6: Final answer
    x = 23,115.45

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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.