Home / 31,269.80-43,152.35-16,929.56

Finding the Fourth Proportional to 31,269.80, 43,152.35 and 16,929.56

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Solution

The fourth proportional to 31,269.80, 43,152.35 and 16,929.56 is: 23,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,269.80 : 43,152.35 = 16,929.56 : x
  2. Step 2: Convert to fraction form
    31,269.80/43,152.35 = 16,929.56/x
  3. Step 3: Cross multiply
    31,269.80x = 43,152.35 × 16,929.56
  4. Step 4: Simplify right side
    31,269.80x = 730,549,998.06
  5. Step 5: Solve for x
    x = 730,549,998.06/31,269.80
  6. Step 6: Final answer
    x = 23,362.80

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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.