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Finding the Fourth Proportional to 21,641.87, 32,465.54 and 6,845.45

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Solution

The fourth proportional to 21,641.87, 32,465.54 and 6,845.45 is: 10,269.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,641.87 : 32,465.54 = 6,845.45 : x
  2. Step 2: Convert to fraction form
    21,641.87/32,465.54 = 6,845.45/x
  3. Step 3: Cross multiply
    21,641.87x = 32,465.54 × 6,845.45
  4. Step 4: Simplify right side
    21,641.87x = 222,241,034.24
  5. Step 5: Solve for x
    x = 222,241,034.24/21,641.87
  6. Step 6: Final answer
    x = 10,269.03

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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.