Home / 19,742.32-27,236.19-12,934.40

Finding the Fourth Proportional to 19,742.32, 27,236.19 and 12,934.40

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Solution

The fourth proportional to 19,742.32, 27,236.19 and 12,934.40 is: 17,844.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.32 : 27,236.19 = 12,934.40 : x
  2. Step 2: Convert to fraction form
    19,742.32/27,236.19 = 12,934.40/x
  3. Step 3: Cross multiply
    19,742.32x = 27,236.19 × 12,934.40
  4. Step 4: Simplify right side
    19,742.32x = 352,283,775.94
  5. Step 5: Solve for x
    x = 352,283,775.94/19,742.32
  6. Step 6: Final answer
    x = 17,844.09

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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.