Home / 21,167.40-29,211.33-11,608.16

Finding the Fourth Proportional to 21,167.40, 29,211.33 and 11,608.16

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Solution

The fourth proportional to 21,167.40, 29,211.33 and 11,608.16 is: 16,019.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.40 : 29,211.33 = 11,608.16 : x
  2. Step 2: Convert to fraction form
    21,167.40/29,211.33 = 11,608.16/x
  3. Step 3: Cross multiply
    21,167.40x = 29,211.33 × 11,608.16
  4. Step 4: Simplify right side
    21,167.40x = 339,089,854.24
  5. Step 5: Solve for x
    x = 339,089,854.24/21,167.40
  6. Step 6: Final answer
    x = 16,019.44

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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.