Home / 27,639.11-38,131.14-15,536.82

Finding the Fourth Proportional to 27,639.11, 38,131.14 and 15,536.82

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Solution

The fourth proportional to 27,639.11, 38,131.14 and 15,536.82 is: 21,434.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,639.11 : 38,131.14 = 15,536.82 : x
  2. Step 2: Convert to fraction form
    27,639.11/38,131.14 = 15,536.82/x
  3. Step 3: Cross multiply
    27,639.11x = 38,131.14 × 15,536.82
  4. Step 4: Simplify right side
    27,639.11x = 592,436,569.86
  5. Step 5: Solve for x
    x = 592,436,569.86/27,639.11
  6. Step 6: Final answer
    x = 21,434.72

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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.