Home / 18,371.10-27,520.20-10,038.90

Finding the Fourth Proportional to 18,371.10, 27,520.20 and 10,038.90

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Solution

The fourth proportional to 18,371.10, 27,520.20 and 10,038.90 is: 15,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.10 : 27,520.20 = 10,038.90 : x
  2. Step 2: Convert to fraction form
    18,371.10/27,520.20 = 10,038.90/x
  3. Step 3: Cross multiply
    18,371.10x = 27,520.20 × 10,038.90
  4. Step 4: Simplify right side
    18,371.10x = 276,272,535.78
  5. Step 5: Solve for x
    x = 276,272,535.78/18,371.10
  6. Step 6: Final answer
    x = 15,038.43

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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.