Home / 27,636.32-38,138.56-15,700

Finding the Fourth Proportional to 27,636.32, 38,138.56 and 15,700

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Solution

The fourth proportional to 27,636.32, 38,138.56 and 15,700 is: 21,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.32 : 38,138.56 = 15,700 : x
  2. Step 2: Convert to fraction form
    27,636.32/38,138.56 = 15,700/x
  3. Step 3: Cross multiply
    27,636.32x = 38,138.56 × 15,700
  4. Step 4: Simplify right side
    27,636.32x = 598,775,392
  5. Step 5: Solve for x
    x = 598,775,392/27,636.32
  6. Step 6: Final answer
    x = 21,666.25

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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.