Home / 19,921.34-27,490.44-10,967.15

Finding the Fourth Proportional to 19,921.34, 27,490.44 and 10,967.15

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Solution

The fourth proportional to 19,921.34, 27,490.44 and 10,967.15 is: 15,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.34 : 27,490.44 = 10,967.15 : x
  2. Step 2: Convert to fraction form
    19,921.34/27,490.44 = 10,967.15/x
  3. Step 3: Cross multiply
    19,921.34x = 27,490.44 × 10,967.15
  4. Step 4: Simplify right side
    19,921.34x = 301,491,672.57
  5. Step 5: Solve for x
    x = 301,491,672.57/19,921.34
  6. Step 6: Final answer
    x = 15,134.10

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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.