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Finding the Fourth Proportional to 15,820.52, 23,731.14 and 5,432.36

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Solution

The fourth proportional to 15,820.52, 23,731.14 and 5,432.36 is: 8,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.52 : 23,731.14 = 5,432.36 : x
  2. Step 2: Convert to fraction form
    15,820.52/23,731.14 = 5,432.36/x
  3. Step 3: Cross multiply
    15,820.52x = 23,731.14 × 5,432.36
  4. Step 4: Simplify right side
    15,820.52x = 128,916,095.69
  5. Step 5: Solve for x
    x = 128,916,095.69/15,820.52
  6. Step 6: Final answer
    x = 8,148.66

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