Home / 31,319.68-46,979.43-7,946.05

Finding the Fourth Proportional to 31,319.68, 46,979.43 and 7,946.05

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Solution

The fourth proportional to 31,319.68, 46,979.43 and 7,946.05 is: 11,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.68 : 46,979.43 = 7,946.05 : x
  2. Step 2: Convert to fraction form
    31,319.68/46,979.43 = 7,946.05/x
  3. Step 3: Cross multiply
    31,319.68x = 46,979.43 × 7,946.05
  4. Step 4: Simplify right side
    31,319.68x = 373,300,899.75
  5. Step 5: Solve for x
    x = 373,300,899.75/31,319.68
  6. Step 6: Final answer
    x = 11,919.05

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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.