Home / 22,180.47-30,572.58-15,722.27

Finding the Fourth Proportional to 22,180.47, 30,572.58 and 15,722.27

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Solution

The fourth proportional to 22,180.47, 30,572.58 and 15,722.27 is: 21,670.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,180.47 : 30,572.58 = 15,722.27 : x
  2. Step 2: Convert to fraction form
    22,180.47/30,572.58 = 15,722.27/x
  3. Step 3: Cross multiply
    22,180.47x = 30,572.58 × 15,722.27
  4. Step 4: Simplify right side
    22,180.47x = 480,670,357.36
  5. Step 5: Solve for x
    x = 480,670,357.36/22,180.47
  6. Step 6: Final answer
    x = 21,670.88

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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.