Home / 21,275.06-29,359.32-11,714.74

Finding the Fourth Proportional to 21,275.06, 29,359.32 and 11,714.74

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Solution

The fourth proportional to 21,275.06, 29,359.32 and 11,714.74 is: 16,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.06 : 29,359.32 = 11,714.74 : x
  2. Step 2: Convert to fraction form
    21,275.06/29,359.32 = 11,714.74/x
  3. Step 3: Cross multiply
    21,275.06x = 29,359.32 × 11,714.74
  4. Step 4: Simplify right side
    21,275.06x = 343,936,800.38
  5. Step 5: Solve for x
    x = 343,936,800.38/21,275.06
  6. Step 6: Final answer
    x = 16,166.20

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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.