Home / 30,928.88-46,400.15-13,158.59

Finding the Fourth Proportional to 30,928.88, 46,400.15 and 13,158.59

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Solution

The fourth proportional to 30,928.88, 46,400.15 and 13,158.59 is: 19,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,928.88 : 46,400.15 = 13,158.59 : x
  2. Step 2: Convert to fraction form
    30,928.88/46,400.15 = 13,158.59/x
  3. Step 3: Cross multiply
    30,928.88x = 46,400.15 × 13,158.59
  4. Step 4: Simplify right side
    30,928.88x = 610,560,698.69
  5. Step 5: Solve for x
    x = 610,560,698.69/30,928.88
  6. Step 6: Final answer
    x = 19,740.79

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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.