Home / 25,431.06-38,146.68-10,446.42

Finding the Fourth Proportional to 25,431.06, 38,146.68 and 10,446.42

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Solution

The fourth proportional to 25,431.06, 38,146.68 and 10,446.42 is: 15,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,431.06 : 38,146.68 = 10,446.42 : x
  2. Step 2: Convert to fraction form
    25,431.06/38,146.68 = 10,446.42/x
  3. Step 3: Cross multiply
    25,431.06x = 38,146.68 × 10,446.42
  4. Step 4: Simplify right side
    25,431.06x = 398,496,240.89
  5. Step 5: Solve for x
    x = 398,496,240.89/25,431.06
  6. Step 6: Final answer
    x = 15,669.67

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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.