Home / 27,713.15-38,243.90-15,137.63

Finding the Fourth Proportional to 27,713.15, 38,243.90 and 15,137.63

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Solution

The fourth proportional to 27,713.15, 38,243.90 and 15,137.63 is: 20,889.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,713.15 : 38,243.90 = 15,137.63 : x
  2. Step 2: Convert to fraction form
    27,713.15/38,243.90 = 15,137.63/x
  3. Step 3: Cross multiply
    27,713.15x = 38,243.90 × 15,137.63
  4. Step 4: Simplify right side
    27,713.15x = 578,922,007.96
  5. Step 5: Solve for x
    x = 578,922,007.96/27,713.15
  6. Step 6: Final answer
    x = 20,889.79

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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.