Home / 21,595.68-29,791.85-12,637.63

Finding the Fourth Proportional to 21,595.68, 29,791.85 and 12,637.63

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Solution

The fourth proportional to 21,595.68, 29,791.85 and 12,637.63 is: 17,433.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.68 : 29,791.85 = 12,637.63 : x
  2. Step 2: Convert to fraction form
    21,595.68/29,791.85 = 12,637.63/x
  3. Step 3: Cross multiply
    21,595.68x = 29,791.85 × 12,637.63
  4. Step 4: Simplify right side
    21,595.68x = 376,498,377.32
  5. Step 5: Solve for x
    x = 376,498,377.32/21,595.68
  6. Step 6: Final answer
    x = 17,433.97

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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.