Home / 18,228.13-27,342.06-10,431.43

Finding the Fourth Proportional to 18,228.13, 27,342.06 and 10,431.43

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Solution

The fourth proportional to 18,228.13, 27,342.06 and 10,431.43 is: 15,647.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.13 : 27,342.06 = 10,431.43 : x
  2. Step 2: Convert to fraction form
    18,228.13/27,342.06 = 10,431.43/x
  3. Step 3: Cross multiply
    18,228.13x = 27,342.06 × 10,431.43
  4. Step 4: Simplify right side
    18,228.13x = 285,216,784.95
  5. Step 5: Solve for x
    x = 285,216,784.95/18,228.13
  6. Step 6: Final answer
    x = 15,647.07

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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.