Home / 27,794.28-38,355.74-15,857.82

Finding the Fourth Proportional to 27,794.28, 38,355.74 and 15,857.82

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Solution

The fourth proportional to 27,794.28, 38,355.74 and 15,857.82 is: 21,883.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,794.28 : 38,355.74 = 15,857.82 : x
  2. Step 2: Convert to fraction form
    27,794.28/38,355.74 = 15,857.82/x
  3. Step 3: Cross multiply
    27,794.28x = 38,355.74 × 15,857.82
  4. Step 4: Simplify right side
    27,794.28x = 608,238,420.89
  5. Step 5: Solve for x
    x = 608,238,420.89/27,794.28
  6. Step 6: Final answer
    x = 21,883.58

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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.