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Finding the Fourth Proportional to 30,489.48, 45,747.18 and 14,686.92

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Solution

The fourth proportional to 30,489.48, 45,747.18 and 14,686.92 is: 22,036.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,489.48 : 45,747.18 = 14,686.92 : x
  2. Step 2: Convert to fraction form
    30,489.48/45,747.18 = 14,686.92/x
  3. Step 3: Cross multiply
    30,489.48x = 45,747.18 × 14,686.92
  4. Step 4: Simplify right side
    30,489.48x = 671,885,172.89
  5. Step 5: Solve for x
    x = 671,885,172.89/30,489.48
  6. Step 6: Final answer
    x = 22,036.62

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