Home / 27,718.64-38,252.76-15,143.48

Finding the Fourth Proportional to 27,718.64, 38,252.76 and 15,143.48

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Solution

The fourth proportional to 27,718.64, 38,252.76 and 15,143.48 is: 20,898.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,718.64 : 38,252.76 = 15,143.48 : x
  2. Step 2: Convert to fraction form
    27,718.64/38,252.76 = 15,143.48/x
  3. Step 3: Cross multiply
    27,718.64x = 38,252.76 × 15,143.48
  4. Step 4: Simplify right side
    27,718.64x = 579,279,906.00
  5. Step 5: Solve for x
    x = 579,279,906.00/27,718.64
  6. Step 6: Final answer
    x = 20,898.57

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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.