Home / 21,348.86-29,460.92-12,396.11

Finding the Fourth Proportional to 21,348.86, 29,460.92 and 12,396.11

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Solution

The fourth proportional to 21,348.86, 29,460.92 and 12,396.11 is: 17,106.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.86 : 29,460.92 = 12,396.11 : x
  2. Step 2: Convert to fraction form
    21,348.86/29,460.92 = 12,396.11/x
  3. Step 3: Cross multiply
    21,348.86x = 29,460.92 × 12,396.11
  4. Step 4: Simplify right side
    21,348.86x = 365,200,595.74
  5. Step 5: Solve for x
    x = 365,200,595.74/21,348.86
  6. Step 6: Final answer
    x = 17,106.33

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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.