Home / 31,435.48-47,143.50-9,243.28

Finding the Fourth Proportional to 31,435.48, 47,143.50 and 9,243.28

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Solution

The fourth proportional to 31,435.48, 47,143.50 and 9,243.28 is: 13,862.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.48 : 47,143.50 = 9,243.28 : x
  2. Step 2: Convert to fraction form
    31,435.48/47,143.50 = 9,243.28/x
  3. Step 3: Cross multiply
    31,435.48x = 47,143.50 × 9,243.28
  4. Step 4: Simplify right side
    31,435.48x = 435,760,570.68
  5. Step 5: Solve for x
    x = 435,760,570.68/31,435.48
  6. Step 6: Final answer
    x = 13,862.06

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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.