Home / 30,689.89-46,039.38-9,631.66

Finding the Fourth Proportional to 30,689.89, 46,039.38 and 9,631.66

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Solution

The fourth proportional to 30,689.89, 46,039.38 and 9,631.66 is: 14,448.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,689.89 : 46,039.38 = 9,631.66 : x
  2. Step 2: Convert to fraction form
    30,689.89/46,039.38 = 9,631.66/x
  3. Step 3: Cross multiply
    30,689.89x = 46,039.38 × 9,631.66
  4. Step 4: Simplify right side
    30,689.89x = 443,435,654.77
  5. Step 5: Solve for x
    x = 443,435,654.77/30,689.89
  6. Step 6: Final answer
    x = 14,448.92

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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.