Home / 25,362.43-34,989.15-15,285.15

Finding the Fourth Proportional to 25,362.43, 34,989.15 and 15,285.15

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Solution

The fourth proportional to 25,362.43, 34,989.15 and 15,285.15 is: 21,086.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,362.43 : 34,989.15 = 15,285.15 : x
  2. Step 2: Convert to fraction form
    25,362.43/34,989.15 = 15,285.15/x
  3. Step 3: Cross multiply
    25,362.43x = 34,989.15 × 15,285.15
  4. Step 4: Simplify right side
    25,362.43x = 534,814,406.12
  5. Step 5: Solve for x
    x = 534,814,406.12/25,362.43
  6. Step 6: Final answer
    x = 21,086.88

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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.