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Finding the Fourth Proportional to 31,411.71, 47,124.54 and 10,358.28

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Solution

The fourth proportional to 31,411.71, 47,124.54 and 10,358.28 is: 15,539.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,411.71 : 47,124.54 = 10,358.28 : x
  2. Step 2: Convert to fraction form
    31,411.71/47,124.54 = 10,358.28/x
  3. Step 3: Cross multiply
    31,411.71x = 47,124.54 × 10,358.28
  4. Step 4: Simplify right side
    31,411.71x = 488,129,180.19
  5. Step 5: Solve for x
    x = 488,129,180.19/31,411.71
  6. Step 6: Final answer
    x = 15,539.72

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