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Finding the Fourth Proportional to 19,310, 28,967.88 and 7,000.88

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Solution

The fourth proportional to 19,310, 28,967.88 and 7,000.88 is: 10,502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310 : 28,967.88 = 7,000.88 : x
  2. Step 2: Convert to fraction form
    19,310/28,967.88 = 7,000.88/x
  3. Step 3: Cross multiply
    19,310x = 28,967.88 × 7,000.88
  4. Step 4: Simplify right side
    19,310x = 202,800,651.73
  5. Step 5: Solve for x
    x = 202,800,651.73/19,310
  6. Step 6: Final answer
    x = 10,502.36

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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.