Home / 34,551.92-47,687.64-20,405.36

Finding the Fourth Proportional to 34,551.92, 47,687.64 and 20,405.36

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Solution

The fourth proportional to 34,551.92, 47,687.64 and 20,405.36 is: 28,162.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,551.92 : 47,687.64 = 20,405.36 : x
  2. Step 2: Convert to fraction form
    34,551.92/47,687.64 = 20,405.36/x
  3. Step 3: Cross multiply
    34,551.92x = 47,687.64 × 20,405.36
  4. Step 4: Simplify right side
    34,551.92x = 973,083,461.75
  5. Step 5: Solve for x
    x = 973,083,461.75/34,551.92
  6. Step 6: Final answer
    x = 28,162.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.