Home / 22,987.49-31,726.43-21,486.66

Finding the Fourth Proportional to 22,987.49, 31,726.43 and 21,486.66

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Solution

The fourth proportional to 22,987.49, 31,726.43 and 21,486.66 is: 29,655.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,987.49 : 31,726.43 = 21,486.66 : x
  2. Step 2: Convert to fraction form
    22,987.49/31,726.43 = 21,486.66/x
  3. Step 3: Cross multiply
    22,987.49x = 31,726.43 × 21,486.66
  4. Step 4: Simplify right side
    22,987.49x = 681,694,906.99
  5. Step 5: Solve for x
    x = 681,694,906.99/22,987.49
  6. Step 6: Final answer
    x = 29,655.05

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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.