Home / 21,262.46-29,341.59-12,310.11

Finding the Fourth Proportional to 21,262.46, 29,341.59 and 12,310.11

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Solution

The fourth proportional to 21,262.46, 29,341.59 and 12,310.11 is: 16,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.46 : 29,341.59 = 12,310.11 : x
  2. Step 2: Convert to fraction form
    21,262.46/29,341.59 = 12,310.11/x
  3. Step 3: Cross multiply
    21,262.46x = 29,341.59 × 12,310.11
  4. Step 4: Simplify right side
    21,262.46x = 361,198,200.47
  5. Step 5: Solve for x
    x = 361,198,200.47/21,262.46
  6. Step 6: Final answer
    x = 16,987.60

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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.