Home / 25,784.92-35,583.55-15,713.78

Finding the Fourth Proportional to 25,784.92, 35,583.55 and 15,713.78

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Solution

The fourth proportional to 25,784.92, 35,583.55 and 15,713.78 is: 21,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,784.92 : 35,583.55 = 15,713.78 : x
  2. Step 2: Convert to fraction form
    25,784.92/35,583.55 = 15,713.78/x
  3. Step 3: Cross multiply
    25,784.92x = 35,583.55 × 15,713.78
  4. Step 4: Simplify right side
    25,784.92x = 559,152,076.32
  5. Step 5: Solve for x
    x = 559,152,076.32/25,784.92
  6. Step 6: Final answer
    x = 21,685.24

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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.