Home / 18,443.10-27,628.20-10,108.20

Finding the Fourth Proportional to 18,443.10, 27,628.20 and 10,108.20

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Solution

The fourth proportional to 18,443.10, 27,628.20 and 10,108.20 is: 15,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.10 : 27,628.20 = 10,108.20 : x
  2. Step 2: Convert to fraction form
    18,443.10/27,628.20 = 10,108.20/x
  3. Step 3: Cross multiply
    18,443.10x = 27,628.20 × 10,108.20
  4. Step 4: Simplify right side
    18,443.10x = 279,271,371.24
  5. Step 5: Solve for x
    x = 279,271,371.24/18,443.10
  6. Step 6: Final answer
    x = 15,142.32

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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.