Home / 27,806.32-38,372.34-15,876.64

Finding the Fourth Proportional to 27,806.32, 38,372.34 and 15,876.64

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Solution

The fourth proportional to 27,806.32, 38,372.34 and 15,876.64 is: 21,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,806.32 : 38,372.34 = 15,876.64 : x
  2. Step 2: Convert to fraction form
    27,806.32/38,372.34 = 15,876.64/x
  3. Step 3: Cross multiply
    27,806.32x = 38,372.34 × 15,876.64
  4. Step 4: Simplify right side
    27,806.32x = 609,223,828.14
  5. Step 5: Solve for x
    x = 609,223,828.14/27,806.32
  6. Step 6: Final answer
    x = 21,909.55

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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.