Home / 25,809.30-38,735.55-12,672.90

Finding the Fourth Proportional to 25,809.30, 38,735.55 and 12,672.90

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Solution

The fourth proportional to 25,809.30, 38,735.55 and 12,672.90 is: 19,019.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,809.30 : 38,735.55 = 12,672.90 : x
  2. Step 2: Convert to fraction form
    25,809.30/38,735.55 = 12,672.90/x
  3. Step 3: Cross multiply
    25,809.30x = 38,735.55 × 12,672.90
  4. Step 4: Simplify right side
    25,809.30x = 490,891,751.60
  5. Step 5: Solve for x
    x = 490,891,751.60/25,809.30
  6. Step 6: Final answer
    x = 19,019.96

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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.