Home / 22,399.71-30,893.70-15,685.62

Finding the Fourth Proportional to 22,399.71, 30,893.70 and 15,685.62

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Solution

The fourth proportional to 22,399.71, 30,893.70 and 15,685.62 is: 21,633.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,399.71 : 30,893.70 = 15,685.62 : x
  2. Step 2: Convert to fraction form
    22,399.71/30,893.70 = 15,685.62/x
  3. Step 3: Cross multiply
    22,399.71x = 30,893.70 × 15,685.62
  4. Step 4: Simplify right side
    22,399.71x = 484,586,838.59
  5. Step 5: Solve for x
    x = 484,586,838.59/22,399.71
  6. Step 6: Final answer
    x = 21,633.62

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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.