Home / 28,025.48-38,675.64-15,450.20

Finding the Fourth Proportional to 28,025.48, 38,675.64 and 15,450.20

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Solution

The fourth proportional to 28,025.48, 38,675.64 and 15,450.20 is: 21,321.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.48 : 38,675.64 = 15,450.20 : x
  2. Step 2: Convert to fraction form
    28,025.48/38,675.64 = 15,450.20/x
  3. Step 3: Cross multiply
    28,025.48x = 38,675.64 × 15,450.20
  4. Step 4: Simplify right side
    28,025.48x = 597,546,373.13
  5. Step 5: Solve for x
    x = 597,546,373.13/28,025.48
  6. Step 6: Final answer
    x = 21,321.54

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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.