Home / 30,778.14-46,170.55-9,718.75

Finding the Fourth Proportional to 30,778.14, 46,170.55 and 9,718.75

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Solution

The fourth proportional to 30,778.14, 46,170.55 and 9,718.75 is: 14,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,778.14 : 46,170.55 = 9,718.75 : x
  2. Step 2: Convert to fraction form
    30,778.14/46,170.55 = 9,718.75/x
  3. Step 3: Cross multiply
    30,778.14x = 46,170.55 × 9,718.75
  4. Step 4: Simplify right side
    30,778.14x = 448,719,801.96
  5. Step 5: Solve for x
    x = 448,719,801.96/30,778.14
  6. Step 6: Final answer
    x = 14,579.17

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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.