Home / 21,364.73-29,481.01-12,749.32

Finding the Fourth Proportional to 21,364.73, 29,481.01 and 12,749.32

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Solution

The fourth proportional to 21,364.73, 29,481.01 and 12,749.32 is: 17,592.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.73 : 29,481.01 = 12,749.32 : x
  2. Step 2: Convert to fraction form
    21,364.73/29,481.01 = 12,749.32/x
  3. Step 3: Cross multiply
    21,364.73x = 29,481.01 × 12,749.32
  4. Step 4: Simplify right side
    21,364.73x = 375,862,830.41
  5. Step 5: Solve for x
    x = 375,862,830.41/21,364.73
  6. Step 6: Final answer
    x = 17,592.68

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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.