Home / 27,107.36-37,403.88-15,778.72

Finding the Fourth Proportional to 27,107.36, 37,403.88 and 15,778.72

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Solution

The fourth proportional to 27,107.36, 37,403.88 and 15,778.72 is: 21,772.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,107.36 : 37,403.88 = 15,778.72 : x
  2. Step 2: Convert to fraction form
    27,107.36/37,403.88 = 15,778.72/x
  3. Step 3: Cross multiply
    27,107.36x = 37,403.88 × 15,778.72
  4. Step 4: Simplify right side
    27,107.36x = 590,185,349.43
  5. Step 5: Solve for x
    x = 590,185,349.43/27,107.36
  6. Step 6: Final answer
    x = 21,772.14

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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.