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Finding the Fourth Proportional to 19,254.10, 28,850.10 and 10,909.30

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Solution

The fourth proportional to 19,254.10, 28,850.10 and 10,909.30 is: 16,346.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,254.10 : 28,850.10 = 10,909.30 : x
  2. Step 2: Convert to fraction form
    19,254.10/28,850.10 = 10,909.30/x
  3. Step 3: Cross multiply
    19,254.10x = 28,850.10 × 10,909.30
  4. Step 4: Simplify right side
    19,254.10x = 314,734,395.93
  5. Step 5: Solve for x
    x = 314,734,395.93/19,254.10
  6. Step 6: Final answer
    x = 16,346.36

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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.