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Finding the Fourth Proportional to 30,389.50, 45,584.01 and 9,329.50

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Solution

The fourth proportional to 30,389.50, 45,584.01 and 9,329.50 is: 13,994.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.50 : 45,584.01 = 9,329.50 : x
  2. Step 2: Convert to fraction form
    30,389.50/45,584.01 = 9,329.50/x
  3. Step 3: Cross multiply
    30,389.50x = 45,584.01 × 9,329.50
  4. Step 4: Simplify right side
    30,389.50x = 425,276,021.30
  5. Step 5: Solve for x
    x = 425,276,021.30/30,389.50
  6. Step 6: Final answer
    x = 13,994.18

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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.