Home / 27,718.88-38,252.05-15,143.63

Finding the Fourth Proportional to 27,718.88, 38,252.05 and 15,143.63

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Solution

The fourth proportional to 27,718.88, 38,252.05 and 15,143.63 is: 20,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,718.88 : 38,252.05 = 15,143.63 : x
  2. Step 2: Convert to fraction form
    27,718.88/38,252.05 = 15,143.63/x
  3. Step 3: Cross multiply
    27,718.88x = 38,252.05 × 15,143.63
  4. Step 4: Simplify right side
    27,718.88x = 579,274,662.82
  5. Step 5: Solve for x
    x = 579,274,662.82/27,718.88
  6. Step 6: Final answer
    x = 20,898.20

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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.