Home / 21,327.98-29,432.66-11,897.15

Finding the Fourth Proportional to 21,327.98, 29,432.66 and 11,897.15

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Solution

The fourth proportional to 21,327.98, 29,432.66 and 11,897.15 is: 16,418.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.98 : 29,432.66 = 11,897.15 : x
  2. Step 2: Convert to fraction form
    21,327.98/29,432.66 = 11,897.15/x
  3. Step 3: Cross multiply
    21,327.98x = 29,432.66 × 11,897.15
  4. Step 4: Simplify right side
    21,327.98x = 350,164,564.27
  5. Step 5: Solve for x
    x = 350,164,564.27/21,327.98
  6. Step 6: Final answer
    x = 16,418.09

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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.