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Finding the Fourth Proportional to 30,289.70, 41,801.02 and 16,860.11

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Solution

The fourth proportional to 30,289.70, 41,801.02 and 16,860.11 is: 23,267.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.70 : 41,801.02 = 16,860.11 : x
  2. Step 2: Convert to fraction form
    30,289.70/41,801.02 = 16,860.11/x
  3. Step 3: Cross multiply
    30,289.70x = 41,801.02 × 16,860.11
  4. Step 4: Simplify right side
    30,289.70x = 704,769,795.31
  5. Step 5: Solve for x
    x = 704,769,795.31/30,289.70
  6. Step 6: Final answer
    x = 23,267.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.