Home / 21,237.75-29,308.74-11,677.14

Finding the Fourth Proportional to 21,237.75, 29,308.74 and 11,677.14

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Solution

The fourth proportional to 21,237.75, 29,308.74 and 11,677.14 is: 16,114.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.75 : 29,308.74 = 11,677.14 : x
  2. Step 2: Convert to fraction form
    21,237.75/29,308.74 = 11,677.14/x
  3. Step 3: Cross multiply
    21,237.75x = 29,308.74 × 11,677.14
  4. Step 4: Simplify right side
    21,237.75x = 342,242,344.64
  5. Step 5: Solve for x
    x = 342,242,344.64/21,237.75
  6. Step 6: Final answer
    x = 16,114.81

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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.