Home / 34,124.20-51,186.90-21,305.32

Finding the Fourth Proportional to 34,124.20, 51,186.90 and 21,305.32

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Solution

The fourth proportional to 34,124.20, 51,186.90 and 21,305.32 is: 31,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,124.20 : 51,186.90 = 21,305.32 : x
  2. Step 2: Convert to fraction form
    34,124.20/51,186.90 = 21,305.32/x
  3. Step 3: Cross multiply
    34,124.20x = 51,186.90 × 21,305.32
  4. Step 4: Simplify right side
    34,124.20x = 1,090,553,284.31
  5. Step 5: Solve for x
    x = 1,090,553,284.31/34,124.20
  6. Step 6: Final answer
    x = 31,958.35

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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.