Home / 35,747.47-53,635.92-12,390.31

Finding the Fourth Proportional to 35,747.47, 53,635.92 and 12,390.31

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Solution

The fourth proportional to 35,747.47, 53,635.92 and 12,390.31 is: 18,590.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,747.47 : 53,635.92 = 12,390.31 : x
  2. Step 2: Convert to fraction form
    35,747.47/53,635.92 = 12,390.31/x
  3. Step 3: Cross multiply
    35,747.47x = 53,635.92 × 12,390.31
  4. Step 4: Simplify right side
    35,747.47x = 664,565,675.94
  5. Step 5: Solve for x
    x = 664,565,675.94/35,747.47
  6. Step 6: Final answer
    x = 18,590.57

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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.