Home / 21,045.76-29,043.88-12,095.16

Finding the Fourth Proportional to 21,045.76, 29,043.88 and 12,095.16

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Solution

The fourth proportional to 21,045.76, 29,043.88 and 12,095.16 is: 16,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.76 : 29,043.88 = 12,095.16 : x
  2. Step 2: Convert to fraction form
    21,045.76/29,043.88 = 12,095.16/x
  3. Step 3: Cross multiply
    21,045.76x = 29,043.88 × 12,095.16
  4. Step 4: Simplify right side
    21,045.76x = 351,290,375.62
  5. Step 5: Solve for x
    x = 351,290,375.62/21,045.76
  6. Step 6: Final answer
    x = 16,691.74

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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.