Home / 25,886.16-38,811.94-20,894.67

Finding the Fourth Proportional to 25,886.16, 38,811.94 and 20,894.67

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Solution

The fourth proportional to 25,886.16, 38,811.94 and 20,894.67 is: 31,328.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,886.16 : 38,811.94 = 20,894.67 : x
  2. Step 2: Convert to fraction form
    25,886.16/38,811.94 = 20,894.67/x
  3. Step 3: Cross multiply
    25,886.16x = 38,811.94 × 20,894.67
  4. Step 4: Simplify right side
    25,886.16x = 810,962,626.12
  5. Step 5: Solve for x
    x = 810,962,626.12/25,886.16
  6. Step 6: Final answer
    x = 31,328.04

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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.