Home / 31,106.69-46,646.31-8,915.03

Finding the Fourth Proportional to 31,106.69, 46,646.31 and 8,915.03

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Solution

The fourth proportional to 31,106.69, 46,646.31 and 8,915.03 is: 13,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,106.69 : 46,646.31 = 8,915.03 : x
  2. Step 2: Convert to fraction form
    31,106.69/46,646.31 = 8,915.03/x
  3. Step 3: Cross multiply
    31,106.69x = 46,646.31 × 8,915.03
  4. Step 4: Simplify right side
    31,106.69x = 415,853,253.04
  5. Step 5: Solve for x
    x = 415,853,253.04/31,106.69
  6. Step 6: Final answer
    x = 13,368.61

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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.