Home / 21,242.84-29,316.66-12,745.33

Finding the Fourth Proportional to 21,242.84, 29,316.66 and 12,745.33

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Solution

The fourth proportional to 21,242.84, 29,316.66 and 12,745.33 is: 17,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,242.84 : 29,316.66 = 12,745.33 : x
  2. Step 2: Convert to fraction form
    21,242.84/29,316.66 = 12,745.33/x
  3. Step 3: Cross multiply
    21,242.84x = 29,316.66 × 12,745.33
  4. Step 4: Simplify right side
    21,242.84x = 373,650,506.20
  5. Step 5: Solve for x
    x = 373,650,506.20/21,242.84
  6. Step 6: Final answer
    x = 17,589.48

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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.