Home / 22,273.40-30,725.64-13,772.81

Finding the Fourth Proportional to 22,273.40, 30,725.64 and 13,772.81

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Solution

The fourth proportional to 22,273.40, 30,725.64 and 13,772.81 is: 18,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,273.40 : 30,725.64 = 13,772.81 : x
  2. Step 2: Convert to fraction form
    22,273.40/30,725.64 = 13,772.81/x
  3. Step 3: Cross multiply
    22,273.40x = 30,725.64 × 13,772.81
  4. Step 4: Simplify right side
    22,273.40x = 423,178,305.83
  5. Step 5: Solve for x
    x = 423,178,305.83/22,273.40
  6. Step 6: Final answer
    x = 18,999.27

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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.