Home / 19,929.66-27,500.54-11,431.34

Finding the Fourth Proportional to 19,929.66, 27,500.54 and 11,431.34

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Solution

The fourth proportional to 19,929.66, 27,500.54 and 11,431.34 is: 15,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.66 : 27,500.54 = 11,431.34 : x
  2. Step 2: Convert to fraction form
    19,929.66/27,500.54 = 11,431.34/x
  3. Step 3: Cross multiply
    19,929.66x = 27,500.54 × 11,431.34
  4. Step 4: Simplify right side
    19,929.66x = 314,367,931.39
  5. Step 5: Solve for x
    x = 314,367,931.39/19,929.66
  6. Step 6: Final answer
    x = 15,773.88

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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.