Home / 21,276.61-29,360.56-11,714.63

Finding the Fourth Proportional to 21,276.61, 29,360.56 and 11,714.63

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Solution

The fourth proportional to 21,276.61, 29,360.56 and 11,714.63 is: 16,165.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.61 : 29,360.56 = 11,714.63 : x
  2. Step 2: Convert to fraction form
    21,276.61/29,360.56 = 11,714.63/x
  3. Step 3: Cross multiply
    21,276.61x = 29,360.56 × 11,714.63
  4. Step 4: Simplify right side
    21,276.61x = 343,948,096.99
  5. Step 5: Solve for x
    x = 343,948,096.99/21,276.61
  6. Step 6: Final answer
    x = 16,165.55

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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.