Home / 21,068.81-29,074.97-11,637.98

Finding the Fourth Proportional to 21,068.81, 29,074.97 and 11,637.98

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Solution

The fourth proportional to 21,068.81, 29,074.97 and 11,637.98 is: 16,060.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.81 : 29,074.97 = 11,637.98 : x
  2. Step 2: Convert to fraction form
    21,068.81/29,074.97 = 11,637.98/x
  3. Step 3: Cross multiply
    21,068.81x = 29,074.97 × 11,637.98
  4. Step 4: Simplify right side
    21,068.81x = 338,373,933.86
  5. Step 5: Solve for x
    x = 338,373,933.86/21,068.81
  6. Step 6: Final answer
    x = 16,060.42

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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.