Home / 23,288.70-32,138.79-12,678.54

Finding the Fourth Proportional to 23,288.70, 32,138.79 and 12,678.54

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Solution

The fourth proportional to 23,288.70, 32,138.79 and 12,678.54 is: 17,496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,288.70 : 32,138.79 = 12,678.54 : x
  2. Step 2: Convert to fraction form
    23,288.70/32,138.79 = 12,678.54/x
  3. Step 3: Cross multiply
    23,288.70x = 32,138.79 × 12,678.54
  4. Step 4: Simplify right side
    23,288.70x = 407,472,934.57
  5. Step 5: Solve for x
    x = 407,472,934.57/23,288.70
  6. Step 6: Final answer
    x = 17,496.59

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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.