Home / 13,730.32-20,596.30-3,870.44

Finding the Fourth Proportional to 13,730.32, 20,596.30 and 3,870.44

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Solution

The fourth proportional to 13,730.32, 20,596.30 and 3,870.44 is: 5,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.32 : 20,596.30 = 3,870.44 : x
  2. Step 2: Convert to fraction form
    13,730.32/20,596.30 = 3,870.44/x
  3. Step 3: Cross multiply
    13,730.32x = 20,596.30 × 3,870.44
  4. Step 4: Simplify right side
    13,730.32x = 79,716,743.37
  5. Step 5: Solve for x
    x = 79,716,743.37/13,730.32
  6. Step 6: Final answer
    x = 5,805.89

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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.