Home / 19,928.09-29,910.56-10,074.30

Finding the Fourth Proportional to 19,928.09, 29,910.56 and 10,074.30

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Solution

The fourth proportional to 19,928.09, 29,910.56 and 10,074.30 is: 15,120.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.09 : 29,910.56 = 10,074.30 : x
  2. Step 2: Convert to fraction form
    19,928.09/29,910.56 = 10,074.30/x
  3. Step 3: Cross multiply
    19,928.09x = 29,910.56 × 10,074.30
  4. Step 4: Simplify right side
    19,928.09x = 301,327,904.24
  5. Step 5: Solve for x
    x = 301,327,904.24/19,928.09
  6. Step 6: Final answer
    x = 15,120.77

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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.