Home / 25,809.30-35,622.18-15,201.54

Finding the Fourth Proportional to 25,809.30, 35,622.18 and 15,201.54

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Solution

The fourth proportional to 25,809.30, 35,622.18 and 15,201.54 is: 20,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,809.30 : 35,622.18 = 15,201.54 : x
  2. Step 2: Convert to fraction form
    25,809.30/35,622.18 = 15,201.54/x
  3. Step 3: Cross multiply
    25,809.30x = 35,622.18 × 15,201.54
  4. Step 4: Simplify right side
    25,809.30x = 541,511,994.16
  5. Step 5: Solve for x
    x = 541,511,994.16/25,809.30
  6. Step 6: Final answer
    x = 20,981.27

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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.