Home / 23,012.04-31,756.74-12,940.92

Finding the Fourth Proportional to 23,012.04, 31,756.74 and 12,940.92

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Solution

The fourth proportional to 23,012.04, 31,756.74 and 12,940.92 is: 17,858.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,012.04 : 31,756.74 = 12,940.92 : x
  2. Step 2: Convert to fraction form
    23,012.04/31,756.74 = 12,940.92/x
  3. Step 3: Cross multiply
    23,012.04x = 31,756.74 × 12,940.92
  4. Step 4: Simplify right side
    23,012.04x = 410,961,431.80
  5. Step 5: Solve for x
    x = 410,961,431.80/23,012.04
  6. Step 6: Final answer
    x = 17,858.54

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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.