Home / 31,081.45-46,622.12-7,707.89

Finding the Fourth Proportional to 31,081.45, 46,622.12 and 7,707.89

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Solution

The fourth proportional to 31,081.45, 46,622.12 and 7,707.89 is: 11,561.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,081.45 : 46,622.12 = 7,707.89 : x
  2. Step 2: Convert to fraction form
    31,081.45/46,622.12 = 7,707.89/x
  3. Step 3: Cross multiply
    31,081.45x = 46,622.12 × 7,707.89
  4. Step 4: Simplify right side
    31,081.45x = 359,357,920.15
  5. Step 5: Solve for x
    x = 359,357,920.15/31,081.45
  6. Step 6: Final answer
    x = 11,561.81

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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.