Home / 21,595.88-29,809.77-12,646.26

Finding the Fourth Proportional to 21,595.88, 29,809.77 and 12,646.26

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Solution

The fourth proportional to 21,595.88, 29,809.77 and 12,646.26 is: 17,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.88 : 29,809.77 = 12,646.26 : x
  2. Step 2: Convert to fraction form
    21,595.88/29,809.77 = 12,646.26/x
  3. Step 3: Cross multiply
    21,595.88x = 29,809.77 × 12,646.26
  4. Step 4: Simplify right side
    21,595.88x = 376,982,101.96
  5. Step 5: Solve for x
    x = 376,982,101.96/21,595.88
  6. Step 6: Final answer
    x = 17,456.20

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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.