Home / 21,374.70-29,496.92-11,815.23

Finding the Fourth Proportional to 21,374.70, 29,496.92 and 11,815.23

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Solution

The fourth proportional to 21,374.70, 29,496.92 and 11,815.23 is: 16,304.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,374.70 : 29,496.92 = 11,815.23 : x
  2. Step 2: Convert to fraction form
    21,374.70/29,496.92 = 11,815.23/x
  3. Step 3: Cross multiply
    21,374.70x = 29,496.92 × 11,815.23
  4. Step 4: Simplify right side
    21,374.70x = 348,512,835.02
  5. Step 5: Solve for x
    x = 348,512,835.02/21,374.70
  6. Step 6: Final answer
    x = 16,304.92

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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.