Home / 28,202.74-38,918.10-15,453.38

Finding the Fourth Proportional to 28,202.74, 38,918.10 and 15,453.38

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Solution

The fourth proportional to 28,202.74, 38,918.10 and 15,453.38 is: 21,324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.74 : 38,918.10 = 15,453.38 : x
  2. Step 2: Convert to fraction form
    28,202.74/38,918.10 = 15,453.38/x
  3. Step 3: Cross multiply
    28,202.74x = 38,918.10 × 15,453.38
  4. Step 4: Simplify right side
    28,202.74x = 601,416,188.18
  5. Step 5: Solve for x
    x = 601,416,188.18/28,202.74
  6. Step 6: Final answer
    x = 21,324.74

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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.