Home / 31,289.41-46,934.27-7,915.87

Finding the Fourth Proportional to 31,289.41, 46,934.27 and 7,915.87

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Solution

The fourth proportional to 31,289.41, 46,934.27 and 7,915.87 is: 11,873.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.41 : 46,934.27 = 7,915.87 : x
  2. Step 2: Convert to fraction form
    31,289.41/46,934.27 = 7,915.87/x
  3. Step 3: Cross multiply
    31,289.41x = 46,934.27 × 7,915.87
  4. Step 4: Simplify right side
    31,289.41x = 371,525,579.86
  5. Step 5: Solve for x
    x = 371,525,579.86/31,289.41
  6. Step 6: Final answer
    x = 11,873.84

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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.