Home / 22,335.63-30,820.87-13,382.90

Finding the Fourth Proportional to 22,335.63, 30,820.87 and 13,382.90

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Solution

The fourth proportional to 22,335.63, 30,820.87 and 13,382.90 is: 18,467.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,335.63 : 30,820.87 = 13,382.90 : x
  2. Step 2: Convert to fraction form
    22,335.63/30,820.87 = 13,382.90/x
  3. Step 3: Cross multiply
    22,335.63x = 30,820.87 × 13,382.90
  4. Step 4: Simplify right side
    22,335.63x = 412,472,772.69
  5. Step 5: Solve for x
    x = 412,472,772.69/22,335.63
  6. Step 6: Final answer
    x = 18,467.03

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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.