Home / 21,302.74-29,397.90-12,355.54

Finding the Fourth Proportional to 21,302.74, 29,397.90 and 12,355.54

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Solution

The fourth proportional to 21,302.74, 29,397.90 and 12,355.54 is: 17,050.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.74 : 29,397.90 = 12,355.54 : x
  2. Step 2: Convert to fraction form
    21,302.74/29,397.90 = 12,355.54/x
  3. Step 3: Cross multiply
    21,302.74x = 29,397.90 × 12,355.54
  4. Step 4: Simplify right side
    21,302.74x = 363,226,929.37
  5. Step 5: Solve for x
    x = 363,226,929.37/21,302.74
  6. Step 6: Final answer
    x = 17,050.71

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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.