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Finding the Fourth Proportional to 47,980.32, 71,970.47 and 16,815.57

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Solution

The fourth proportional to 47,980.32, 71,970.47 and 16,815.57 is: 25,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,980.32 : 71,970.47 = 16,815.57 : x
  2. Step 2: Convert to fraction form
    47,980.32/71,970.47 = 16,815.57/x
  3. Step 3: Cross multiply
    47,980.32x = 71,970.47 × 16,815.57
  4. Step 4: Simplify right side
    47,980.32x = 1,210,224,392.14
  5. Step 5: Solve for x
    x = 1,210,224,392.14/47,980.32
  6. Step 6: Final answer
    x = 25,223.35

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