Home / 31,279.90-46,920.01-7,906.36

Finding the Fourth Proportional to 31,279.90, 46,920.01 and 7,906.36

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Solution

The fourth proportional to 31,279.90, 46,920.01 and 7,906.36 is: 11,859.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.90 : 46,920.01 = 7,906.36 : x
  2. Step 2: Convert to fraction form
    31,279.90/46,920.01 = 7,906.36/x
  3. Step 3: Cross multiply
    31,279.90x = 46,920.01 × 7,906.36
  4. Step 4: Simplify right side
    31,279.90x = 370,966,490.26
  5. Step 5: Solve for x
    x = 370,966,490.26/31,279.90
  6. Step 6: Final answer
    x = 11,859.58

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1.5x scale

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.