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Finding the Fourth Proportional to 20,394.50, 30,592.58 and 9,715.37

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Solution

The fourth proportional to 20,394.50, 30,592.58 and 9,715.37 is: 14,573.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394.50 : 30,592.58 = 9,715.37 : x
  2. Step 2: Convert to fraction form
    20,394.50/30,592.58 = 9,715.37/x
  3. Step 3: Cross multiply
    20,394.50x = 30,592.58 × 9,715.37
  4. Step 4: Simplify right side
    20,394.50x = 297,218,050.63
  5. Step 5: Solve for x
    x = 297,218,050.63/20,394.50
  6. Step 6: Final answer
    x = 14,573.44

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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.