Home / 21,634.44-29,848.68-12,683.40

Finding the Fourth Proportional to 21,634.44, 29,848.68 and 12,683.40

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Solution

The fourth proportional to 21,634.44, 29,848.68 and 12,683.40 is: 17,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,634.44 : 29,848.68 = 12,683.40 : x
  2. Step 2: Convert to fraction form
    21,634.44/29,848.68 = 12,683.40/x
  3. Step 3: Cross multiply
    21,634.44x = 29,848.68 × 12,683.40
  4. Step 4: Simplify right side
    21,634.44x = 378,582,747.91
  5. Step 5: Solve for x
    x = 378,582,747.91/21,634.44
  6. Step 6: Final answer
    x = 17,499.08

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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.