Home / 27,712.59-38,243.32-15,137.34

Finding the Fourth Proportional to 27,712.59, 38,243.32 and 15,137.34

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Solution

The fourth proportional to 27,712.59, 38,243.32 and 15,137.34 is: 20,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,712.59 : 38,243.32 = 15,137.34 : x
  2. Step 2: Convert to fraction form
    27,712.59/38,243.32 = 15,137.34/x
  3. Step 3: Cross multiply
    27,712.59x = 38,243.32 × 15,137.34
  4. Step 4: Simplify right side
    27,712.59x = 578,902,137.57
  5. Step 5: Solve for x
    x = 578,902,137.57/27,712.59
  6. Step 6: Final answer
    x = 20,889.50

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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.