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Finding the Fourth Proportional to 30,973.46, 46,432.64 and 13,433.72

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Solution

The fourth proportional to 30,973.46, 46,432.64 and 13,433.72 is: 20,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,973.46 : 46,432.64 = 13,433.72 : x
  2. Step 2: Convert to fraction form
    30,973.46/46,432.64 = 13,433.72/x
  3. Step 3: Cross multiply
    30,973.46x = 46,432.64 × 13,433.72
  4. Step 4: Simplify right side
    30,973.46x = 623,762,852.46
  5. Step 5: Solve for x
    x = 623,762,852.46/30,973.46
  6. Step 6: Final answer
    x = 20,138.63

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