Home / 27,639.68-38,143.50-15,065.24

Finding the Fourth Proportional to 27,639.68, 38,143.50 and 15,065.24

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Solution

The fourth proportional to 27,639.68, 38,143.50 and 15,065.24 is: 20,790.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,639.68 : 38,143.50 = 15,065.24 : x
  2. Step 2: Convert to fraction form
    27,639.68/38,143.50 = 15,065.24/x
  3. Step 3: Cross multiply
    27,639.68x = 38,143.50 × 15,065.24
  4. Step 4: Simplify right side
    27,639.68x = 574,640,981.94
  5. Step 5: Solve for x
    x = 574,640,981.94/27,639.68
  6. Step 6: Final answer
    x = 20,790.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.