Home / 19,978.32-29,972.08-5,938.04

Finding the Fourth Proportional to 19,978.32, 29,972.08 and 5,938.04

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Solution

The fourth proportional to 19,978.32, 29,972.08 and 5,938.04 is: 8,908.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,978.32 : 29,972.08 = 5,938.04 : x
  2. Step 2: Convert to fraction form
    19,978.32/29,972.08 = 5,938.04/x
  3. Step 3: Cross multiply
    19,978.32x = 29,972.08 × 5,938.04
  4. Step 4: Simplify right side
    19,978.32x = 177,975,409.92
  5. Step 5: Solve for x
    x = 177,975,409.92/19,978.32
  6. Step 6: Final answer
    x = 8,908.43

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Why These Related Problems?

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