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Finding the Fourth Proportional to 30,772.81, 46,140.73 and 12,030.52

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Solution

The fourth proportional to 30,772.81, 46,140.73 and 12,030.52 is: 18,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,772.81 : 46,140.73 = 12,030.52 : x
  2. Step 2: Convert to fraction form
    30,772.81/46,140.73 = 12,030.52/x
  3. Step 3: Cross multiply
    30,772.81x = 46,140.73 × 12,030.52
  4. Step 4: Simplify right side
    30,772.81x = 555,096,975.08
  5. Step 5: Solve for x
    x = 555,096,975.08/30,772.81
  6. Step 6: Final answer
    x = 18,038.55

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