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Finding the Fourth Proportional to 19,283.88, 28,930.08 and 8,200.08

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Solution

The fourth proportional to 19,283.88, 28,930.08 and 8,200.08 is: 12,301.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,283.88 : 28,930.08 = 8,200.08 : x
  2. Step 2: Convert to fraction form
    19,283.88/28,930.08 = 8,200.08/x
  3. Step 3: Cross multiply
    19,283.88x = 28,930.08 × 8,200.08
  4. Step 4: Simplify right side
    19,283.88x = 237,228,970.41
  5. Step 5: Solve for x
    x = 237,228,970.41/19,283.88
  6. Step 6: Final answer
    x = 12,301.93

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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.