Home / 25,189.12-34,768.96-15,751.68

Finding the Fourth Proportional to 25,189.12, 34,768.96 and 15,751.68

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Solution

The fourth proportional to 25,189.12, 34,768.96 and 15,751.68 is: 21,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,189.12 : 34,768.96 = 15,751.68 : x
  2. Step 2: Convert to fraction form
    25,189.12/34,768.96 = 15,751.68/x
  3. Step 3: Cross multiply
    25,189.12x = 34,768.96 × 15,751.68
  4. Step 4: Simplify right side
    25,189.12x = 547,669,531.85
  5. Step 5: Solve for x
    x = 547,669,531.85/25,189.12
  6. Step 6: Final answer
    x = 21,742.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.