Home / 21,786.02-30,064.33-12,226.13

Finding the Fourth Proportional to 21,786.02, 30,064.33 and 12,226.13

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Solution

The fourth proportional to 21,786.02, 30,064.33 and 12,226.13 is: 16,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,786.02 : 30,064.33 = 12,226.13 : x
  2. Step 2: Convert to fraction form
    21,786.02/30,064.33 = 12,226.13/x
  3. Step 3: Cross multiply
    21,786.02x = 30,064.33 × 12,226.13
  4. Step 4: Simplify right side
    21,786.02x = 367,570,406.94
  5. Step 5: Solve for x
    x = 367,570,406.94/21,786.02
  6. Step 6: Final answer
    x = 16,871.85

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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.