Home / 21,268.92-29,354.04-12,319.23

Finding the Fourth Proportional to 21,268.92, 29,354.04 and 12,319.23

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Solution

The fourth proportional to 21,268.92, 29,354.04 and 12,319.23 is: 17,002.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.92 : 29,354.04 = 12,319.23 : x
  2. Step 2: Convert to fraction form
    21,268.92/29,354.04 = 12,319.23/x
  3. Step 3: Cross multiply
    21,268.92x = 29,354.04 × 12,319.23
  4. Step 4: Simplify right side
    21,268.92x = 361,619,170.19
  5. Step 5: Solve for x
    x = 361,619,170.19/21,268.92
  6. Step 6: Final answer
    x = 17,002.23

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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.