Home / 19,928.21-29,910.74-10,074.35

Finding the Fourth Proportional to 19,928.21, 29,910.74 and 10,074.35

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Solution

The fourth proportional to 19,928.21, 29,910.74 and 10,074.35 is: 15,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.21 : 29,910.74 = 10,074.35 : x
  2. Step 2: Convert to fraction form
    19,928.21/29,910.74 = 10,074.35/x
  3. Step 3: Cross multiply
    19,928.21x = 29,910.74 × 10,074.35
  4. Step 4: Simplify right side
    19,928.21x = 301,331,287.92
  5. Step 5: Solve for x
    x = 301,331,287.92/19,928.21
  6. Step 6: Final answer
    x = 15,120.84

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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.