Home / 27,275.15-37,639.43-15,175.57

Finding the Fourth Proportional to 27,275.15, 37,639.43 and 15,175.57

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Solution

The fourth proportional to 27,275.15, 37,639.43 and 15,175.57 is: 20,942.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,275.15 : 37,639.43 = 15,175.57 : x
  2. Step 2: Convert to fraction form
    27,275.15/37,639.43 = 15,175.57/x
  3. Step 3: Cross multiply
    27,275.15x = 37,639.43 × 15,175.57
  4. Step 4: Simplify right side
    27,275.15x = 571,199,847.59
  5. Step 5: Solve for x
    x = 571,199,847.59/27,275.15
  6. Step 6: Final answer
    x = 20,942.14

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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.