Home / 30,720.69-46,086.43-12,708.85

Finding the Fourth Proportional to 30,720.69, 46,086.43 and 12,708.85

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Solution

The fourth proportional to 30,720.69, 46,086.43 and 12,708.85 is: 19,065.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.69 : 46,086.43 = 12,708.85 : x
  2. Step 2: Convert to fraction form
    30,720.69/46,086.43 = 12,708.85/x
  3. Step 3: Cross multiply
    30,720.69x = 46,086.43 × 12,708.85
  4. Step 4: Simplify right side
    30,720.69x = 585,705,525.91
  5. Step 5: Solve for x
    x = 585,705,525.91/30,720.69
  6. Step 6: Final answer
    x = 19,065.51

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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.