Home / 21,241.08-29,314.32-12,743.52

Finding the Fourth Proportional to 21,241.08, 29,314.32 and 12,743.52

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Solution

The fourth proportional to 21,241.08, 29,314.32 and 12,743.52 is: 17,587.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.08 : 29,314.32 = 12,743.52 : x
  2. Step 2: Convert to fraction form
    21,241.08/29,314.32 = 12,743.52/x
  3. Step 3: Cross multiply
    21,241.08x = 29,314.32 × 12,743.52
  4. Step 4: Simplify right side
    21,241.08x = 373,567,623.21
  5. Step 5: Solve for x
    x = 373,567,623.21/21,241.08
  6. Step 6: Final answer
    x = 17,587.04

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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.