Home / 21,267.60-29,348.04-12,314.48

Finding the Fourth Proportional to 21,267.60, 29,348.04 and 12,314.48

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Solution

The fourth proportional to 21,267.60, 29,348.04 and 12,314.48 is: 16,993.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.60 : 29,348.04 = 12,314.48 : x
  2. Step 2: Convert to fraction form
    21,267.60/29,348.04 = 12,314.48/x
  3. Step 3: Cross multiply
    21,267.60x = 29,348.04 × 12,314.48
  4. Step 4: Simplify right side
    21,267.60x = 361,405,851.62
  5. Step 5: Solve for x
    x = 361,405,851.62/21,267.60
  6. Step 6: Final answer
    x = 16,993.26

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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.