Home / 27,665.50-38,179.74-15,569.76

Finding the Fourth Proportional to 27,665.50, 38,179.74 and 15,569.76

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Solution

The fourth proportional to 27,665.50, 38,179.74 and 15,569.76 is: 21,487.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,665.50 : 38,179.74 = 15,569.76 : x
  2. Step 2: Convert to fraction form
    27,665.50/38,179.74 = 15,569.76/x
  3. Step 3: Cross multiply
    27,665.50x = 38,179.74 × 15,569.76
  4. Step 4: Simplify right side
    27,665.50x = 594,449,388.66
  5. Step 5: Solve for x
    x = 594,449,388.66/27,665.50
  6. Step 6: Final answer
    x = 21,487.03

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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.