Home / 20,629.81-30,955.26-9,822.77

Finding the Fourth Proportional to 20,629.81, 30,955.26 and 9,822.77

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Solution

The fourth proportional to 20,629.81, 30,955.26 and 9,822.77 is: 14,739.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.81 : 30,955.26 = 9,822.77 : x
  2. Step 2: Convert to fraction form
    20,629.81/30,955.26 = 9,822.77/x
  3. Step 3: Cross multiply
    20,629.81x = 30,955.26 × 9,822.77
  4. Step 4: Simplify right side
    20,629.81x = 304,066,342.16
  5. Step 5: Solve for x
    x = 304,066,342.16/20,629.81
  6. Step 6: Final answer
    x = 14,739.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.