Home / 27,640.11-38,132.51-15,537.82

Finding the Fourth Proportional to 27,640.11, 38,132.51 and 15,537.82

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Solution

The fourth proportional to 27,640.11, 38,132.51 and 15,537.82 is: 21,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.11 : 38,132.51 = 15,537.82 : x
  2. Step 2: Convert to fraction form
    27,640.11/38,132.51 = 15,537.82/x
  3. Step 3: Cross multiply
    27,640.11x = 38,132.51 × 15,537.82
  4. Step 4: Simplify right side
    27,640.11x = 592,496,076.53
  5. Step 5: Solve for x
    x = 592,496,076.53/27,640.11
  6. Step 6: Final answer
    x = 21,436.10

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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.