Home / 19,931.44-29,900.80-8,245.58

Finding the Fourth Proportional to 19,931.44, 29,900.80 and 8,245.58

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Solution

The fourth proportional to 19,931.44, 29,900.80 and 8,245.58 is: 12,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.44 : 29,900.80 = 8,245.58 : x
  2. Step 2: Convert to fraction form
    19,931.44/29,900.80 = 8,245.58/x
  3. Step 3: Cross multiply
    19,931.44x = 29,900.80 × 8,245.58
  4. Step 4: Simplify right side
    19,931.44x = 246,549,438.46
  5. Step 5: Solve for x
    x = 246,549,438.46/19,931.44
  6. Step 6: Final answer
    x = 12,369.88

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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.