Home / 21,302.14-29,398.65-11,743.73

Finding the Fourth Proportional to 21,302.14, 29,398.65 and 11,743.73

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Solution

The fourth proportional to 21,302.14, 29,398.65 and 11,743.73 is: 16,207.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.14 : 29,398.65 = 11,743.73 : x
  2. Step 2: Convert to fraction form
    21,302.14/29,398.65 = 11,743.73/x
  3. Step 3: Cross multiply
    21,302.14x = 29,398.65 × 11,743.73
  4. Step 4: Simplify right side
    21,302.14x = 345,249,807.96
  5. Step 5: Solve for x
    x = 345,249,807.96/21,302.14
  6. Step 6: Final answer
    x = 16,207.28

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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.