Home / 21,274.82-29,358.08-11,714.32

Finding the Fourth Proportional to 21,274.82, 29,358.08 and 11,714.32

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Solution

The fourth proportional to 21,274.82, 29,358.08 and 11,714.32 is: 16,165.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.82 : 29,358.08 = 11,714.32 : x
  2. Step 2: Convert to fraction form
    21,274.82/29,358.08 = 11,714.32/x
  3. Step 3: Cross multiply
    21,274.82x = 29,358.08 × 11,714.32
  4. Step 4: Simplify right side
    21,274.82x = 343,909,943.71
  5. Step 5: Solve for x
    x = 343,909,943.71/21,274.82
  6. Step 6: Final answer
    x = 16,165.12

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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.