Home / 20,211.02-30,319.90-9,117.46

Finding the Fourth Proportional to 20,211.02, 30,319.90 and 9,117.46

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Solution

The fourth proportional to 20,211.02, 30,319.90 and 9,117.46 is: 13,677.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.02 : 30,319.90 = 9,117.46 : x
  2. Step 2: Convert to fraction form
    20,211.02/30,319.90 = 9,117.46/x
  3. Step 3: Cross multiply
    20,211.02x = 30,319.90 × 9,117.46
  4. Step 4: Simplify right side
    20,211.02x = 276,440,475.45
  5. Step 5: Solve for x
    x = 276,440,475.45/20,211.02
  6. Step 6: Final answer
    x = 13,677.71

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