Home / 28,202.28-38,920.41-15,626.22

Finding the Fourth Proportional to 28,202.28, 38,920.41 and 15,626.22

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Solution

The fourth proportional to 28,202.28, 38,920.41 and 15,626.22 is: 21,564.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.28 : 38,920.41 = 15,626.22 : x
  2. Step 2: Convert to fraction form
    28,202.28/38,920.41 = 15,626.22/x
  3. Step 3: Cross multiply
    28,202.28x = 38,920.41 × 15,626.22
  4. Step 4: Simplify right side
    28,202.28x = 608,178,889.15
  5. Step 5: Solve for x
    x = 608,178,889.15/28,202.28
  6. Step 6: Final answer
    x = 21,564.88

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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.