Home / 31,294.08-46,941.30-7,920.48

Finding the Fourth Proportional to 31,294.08, 46,941.30 and 7,920.48

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Solution

The fourth proportional to 31,294.08, 46,941.30 and 7,920.48 is: 11,880.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,294.08 : 46,941.30 = 7,920.48 : x
  2. Step 2: Convert to fraction form
    31,294.08/46,941.30 = 7,920.48/x
  3. Step 3: Cross multiply
    31,294.08x = 46,941.30 × 7,920.48
  4. Step 4: Simplify right side
    31,294.08x = 371,797,627.82
  5. Step 5: Solve for x
    x = 371,797,627.82/31,294.08
  6. Step 6: Final answer
    x = 11,880.77

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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.