Home / 25,806.83-38,684.72-12,455.19

Finding the Fourth Proportional to 25,806.83, 38,684.72 and 12,455.19

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Solution

The fourth proportional to 25,806.83, 38,684.72 and 12,455.19 is: 18,670.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,806.83 : 38,684.72 = 12,455.19 : x
  2. Step 2: Convert to fraction form
    25,806.83/38,684.72 = 12,455.19/x
  3. Step 3: Cross multiply
    25,806.83x = 38,684.72 × 12,455.19
  4. Step 4: Simplify right side
    25,806.83x = 481,825,475.42
  5. Step 5: Solve for x
    x = 481,825,475.42/25,806.83
  6. Step 6: Final answer
    x = 18,670.47

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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.