Home / 22,008.84-30,371.64-12,576.78

Finding the Fourth Proportional to 22,008.84, 30,371.64 and 12,576.78

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Solution

The fourth proportional to 22,008.84, 30,371.64 and 12,576.78 is: 17,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,008.84 : 30,371.64 = 12,576.78 : x
  2. Step 2: Convert to fraction form
    22,008.84/30,371.64 = 12,576.78/x
  3. Step 3: Cross multiply
    22,008.84x = 30,371.64 × 12,576.78
  4. Step 4: Simplify right side
    22,008.84x = 381,977,434.52
  5. Step 5: Solve for x
    x = 381,977,434.52/22,008.84
  6. Step 6: Final answer
    x = 17,355.64

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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.