Home / 27,512.29-37,881.95-21,486.87

Finding the Fourth Proportional to 27,512.29, 37,881.95 and 21,486.87

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Solution

The fourth proportional to 27,512.29, 37,881.95 and 21,486.87 is: 29,585.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,512.29 : 37,881.95 = 21,486.87 : x
  2. Step 2: Convert to fraction form
    27,512.29/37,881.95 = 21,486.87/x
  3. Step 3: Cross multiply
    27,512.29x = 37,881.95 × 21,486.87
  4. Step 4: Simplify right side
    27,512.29x = 813,964,481.28
  5. Step 5: Solve for x
    x = 813,964,481.28/27,512.29
  6. Step 6: Final answer
    x = 29,585.49

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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.