Home / 31,328.09-47,001.87-10,268.31

Finding the Fourth Proportional to 31,328.09, 47,001.87 and 10,268.31

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Solution

The fourth proportional to 31,328.09, 47,001.87 and 10,268.31 is: 15,405.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,328.09 : 47,001.87 = 10,268.31 : x
  2. Step 2: Convert to fraction form
    31,328.09/47,001.87 = 10,268.31/x
  3. Step 3: Cross multiply
    31,328.09x = 47,001.87 × 10,268.31
  4. Step 4: Simplify right side
    31,328.09x = 482,629,771.74
  5. Step 5: Solve for x
    x = 482,629,771.74/31,328.09
  6. Step 6: Final answer
    x = 15,405.66

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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.