Home / 31,111.04-46,660.28-8,918.46

Finding the Fourth Proportional to 31,111.04, 46,660.28 and 8,918.46

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Solution

The fourth proportional to 31,111.04, 46,660.28 and 8,918.46 is: 13,375.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,111.04 : 46,660.28 = 8,918.46 : x
  2. Step 2: Convert to fraction form
    31,111.04/46,660.28 = 8,918.46/x
  3. Step 3: Cross multiply
    31,111.04x = 46,660.28 × 8,918.46
  4. Step 4: Simplify right side
    31,111.04x = 416,137,840.77
  5. Step 5: Solve for x
    x = 416,137,840.77/31,111.04
  6. Step 6: Final answer
    x = 13,375.89

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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.