Home / 31,318.68-46,977.93-7,945.05

Finding the Fourth Proportional to 31,318.68, 46,977.93 and 7,945.05

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Solution

The fourth proportional to 31,318.68, 46,977.93 and 7,945.05 is: 11,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,318.68 : 46,977.93 = 7,945.05 : x
  2. Step 2: Convert to fraction form
    31,318.68/46,977.93 = 7,945.05/x
  3. Step 3: Cross multiply
    31,318.68x = 46,977.93 × 7,945.05
  4. Step 4: Simplify right side
    31,318.68x = 373,242,002.75
  5. Step 5: Solve for x
    x = 373,242,002.75/31,318.68
  6. Step 6: Final answer
    x = 11,917.55

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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.