Home / 21,237.18-29,304.75-11,675.49

Finding the Fourth Proportional to 21,237.18, 29,304.75 and 11,675.49

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Solution

The fourth proportional to 21,237.18, 29,304.75 and 11,675.49 is: 16,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.18 : 29,304.75 = 11,675.49 : x
  2. Step 2: Convert to fraction form
    21,237.18/29,304.75 = 11,675.49/x
  3. Step 3: Cross multiply
    21,237.18x = 29,304.75 × 11,675.49
  4. Step 4: Simplify right side
    21,237.18x = 342,147,169.05
  5. Step 5: Solve for x
    x = 342,147,169.05/21,237.18
  6. Step 6: Final answer
    x = 16,110.77

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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.