Home / 21,275.17-29,359.50-11,714.87

Finding the Fourth Proportional to 21,275.17, 29,359.50 and 11,714.87

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Solution

The fourth proportional to 21,275.17, 29,359.50 and 11,714.87 is: 16,166.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.17 : 29,359.50 = 11,714.87 : x
  2. Step 2: Convert to fraction form
    21,275.17/29,359.50 = 11,714.87/x
  3. Step 3: Cross multiply
    21,275.17x = 29,359.50 × 11,714.87
  4. Step 4: Simplify right side
    21,275.17x = 343,942,725.77
  5. Step 5: Solve for x
    x = 343,942,725.77/21,275.17
  6. Step 6: Final answer
    x = 16,166.39

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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.