Home / 21,302.62-29,397.73-12,355.43

Finding the Fourth Proportional to 21,302.62, 29,397.73 and 12,355.43

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Solution

The fourth proportional to 21,302.62, 29,397.73 and 12,355.43 is: 17,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.62 : 29,397.73 = 12,355.43 : x
  2. Step 2: Convert to fraction form
    21,302.62/29,397.73 = 12,355.43/x
  3. Step 3: Cross multiply
    21,302.62x = 29,397.73 × 12,355.43
  4. Step 4: Simplify right side
    21,302.62x = 363,221,417.30
  5. Step 5: Solve for x
    x = 363,221,417.30/21,302.62
  6. Step 6: Final answer
    x = 17,050.55

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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.