Home / 21,822.37-30,114.99-12,262.66

Finding the Fourth Proportional to 21,822.37, 30,114.99 and 12,262.66

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Solution

The fourth proportional to 21,822.37, 30,114.99 and 12,262.66 is: 16,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,822.37 : 30,114.99 = 12,262.66 : x
  2. Step 2: Convert to fraction form
    21,822.37/30,114.99 = 12,262.66/x
  3. Step 3: Cross multiply
    21,822.37x = 30,114.99 × 12,262.66
  4. Step 4: Simplify right side
    21,822.37x = 369,289,807.99
  5. Step 5: Solve for x
    x = 369,289,807.99/21,822.37
  6. Step 6: Final answer
    x = 16,922.54

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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.