Home / 21,297.27-29,377.17-14,127.51

Finding the Fourth Proportional to 21,297.27, 29,377.17 and 14,127.51

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Solution

The fourth proportional to 21,297.27, 29,377.17 and 14,127.51 is: 19,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297.27 : 29,377.17 = 14,127.51 : x
  2. Step 2: Convert to fraction form
    21,297.27/29,377.17 = 14,127.51/x
  3. Step 3: Cross multiply
    21,297.27x = 29,377.17 × 14,127.51
  4. Step 4: Simplify right side
    21,297.27x = 415,026,262.95
  5. Step 5: Solve for x
    x = 415,026,262.95/21,297.27
  6. Step 6: Final answer
    x = 19,487.30

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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.