Home / 21,887.51-30,408.66-21,625.07

Finding the Fourth Proportional to 21,887.51, 30,408.66 and 21,625.07

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Solution

The fourth proportional to 21,887.51, 30,408.66 and 21,625.07 is: 30,044.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.51 : 30,408.66 = 21,625.07 : x
  2. Step 2: Convert to fraction form
    21,887.51/30,408.66 = 21,625.07/x
  3. Step 3: Cross multiply
    21,887.51x = 30,408.66 × 21,625.07
  4. Step 4: Simplify right side
    21,887.51x = 657,589,249.06
  5. Step 5: Solve for x
    x = 657,589,249.06/21,887.51
  6. Step 6: Final answer
    x = 30,044.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.