Home / 19,345.86-28,969.79-16,217.64

Finding the Fourth Proportional to 19,345.86, 28,969.79 and 16,217.64

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Solution

The fourth proportional to 19,345.86, 28,969.79 and 16,217.64 is: 24,285.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.86 : 28,969.79 = 16,217.64 : x
  2. Step 2: Convert to fraction form
    19,345.86/28,969.79 = 16,217.64/x
  3. Step 3: Cross multiply
    19,345.86x = 28,969.79 × 16,217.64
  4. Step 4: Simplify right side
    19,345.86x = 469,821,544.01
  5. Step 5: Solve for x
    x = 469,821,544.01/19,345.86
  6. Step 6: Final answer
    x = 24,285.38

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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.