Home / 22,040.30-30,415.65-11,968.76

Finding the Fourth Proportional to 22,040.30, 30,415.65 and 11,968.76

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Solution

The fourth proportional to 22,040.30, 30,415.65 and 11,968.76 is: 16,516.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,040.30 : 30,415.65 = 11,968.76 : x
  2. Step 2: Convert to fraction form
    22,040.30/30,415.65 = 11,968.76/x
  3. Step 3: Cross multiply
    22,040.30x = 30,415.65 × 11,968.76
  4. Step 4: Simplify right side
    22,040.30x = 364,037,615.09
  5. Step 5: Solve for x
    x = 364,037,615.09/22,040.30
  6. Step 6: Final answer
    x = 16,516.91

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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.