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Finding the Fourth Proportional to 23,249.76, 32,085.01 and 12,639.40

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Solution

The fourth proportional to 23,249.76, 32,085.01 and 12,639.40 is: 17,442.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,249.76 : 32,085.01 = 12,639.40 : x
  2. Step 2: Convert to fraction form
    23,249.76/32,085.01 = 12,639.40/x
  3. Step 3: Cross multiply
    23,249.76x = 32,085.01 × 12,639.40
  4. Step 4: Simplify right side
    23,249.76x = 405,535,275.39
  5. Step 5: Solve for x
    x = 405,535,275.39/23,249.76
  6. Step 6: Final answer
    x = 17,442.56

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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.