Home / 19,728.58-29,581.90-6,573.78

Finding the Fourth Proportional to 19,728.58, 29,581.90 and 6,573.78

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Solution

The fourth proportional to 19,728.58, 29,581.90 and 6,573.78 is: 9,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.58 : 29,581.90 = 6,573.78 : x
  2. Step 2: Convert to fraction form
    19,728.58/29,581.90 = 6,573.78/x
  3. Step 3: Cross multiply
    19,728.58x = 29,581.90 × 6,573.78
  4. Step 4: Simplify right side
    19,728.58x = 194,464,902.58
  5. Step 5: Solve for x
    x = 194,464,902.58/19,728.58
  6. Step 6: Final answer
    x = 9,857.01

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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.