Home / 21,887.29-30,408.38-21,624.85

Finding the Fourth Proportional to 21,887.29, 30,408.38 and 21,624.85

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Solution

The fourth proportional to 21,887.29, 30,408.38 and 21,624.85 is: 30,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.29 : 30,408.38 = 21,624.85 : x
  2. Step 2: Convert to fraction form
    21,887.29/30,408.38 = 21,624.85/x
  3. Step 3: Cross multiply
    21,887.29x = 30,408.38 × 21,624.85
  4. Step 4: Simplify right side
    21,887.29x = 657,576,752.75
  5. Step 5: Solve for x
    x = 657,576,752.75/21,887.29
  6. Step 6: Final answer
    x = 30,043.77

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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.