Home / 23,288.78-32,137.70-12,678.24

Finding the Fourth Proportional to 23,288.78, 32,137.70 and 12,678.24

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Solution

The fourth proportional to 23,288.78, 32,137.70 and 12,678.24 is: 17,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,288.78 : 32,137.70 = 12,678.24 : x
  2. Step 2: Convert to fraction form
    23,288.78/32,137.70 = 12,678.24/x
  3. Step 3: Cross multiply
    23,288.78x = 32,137.70 × 12,678.24
  4. Step 4: Simplify right side
    23,288.78x = 407,449,473.65
  5. Step 5: Solve for x
    x = 407,449,473.65/23,288.78
  6. Step 6: Final answer
    x = 17,495.53

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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.