Home / 23,012.15-31,756.56-12,940.37

Finding the Fourth Proportional to 23,012.15, 31,756.56 and 12,940.37

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Solution

The fourth proportional to 23,012.15, 31,756.56 and 12,940.37 is: 17,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,012.15 : 31,756.56 = 12,940.37 : x
  2. Step 2: Convert to fraction form
    23,012.15/31,756.56 = 12,940.37/x
  3. Step 3: Cross multiply
    23,012.15x = 31,756.56 × 12,940.37
  4. Step 4: Simplify right side
    23,012.15x = 410,941,835.92
  5. Step 5: Solve for x
    x = 410,941,835.92/23,012.15
  6. Step 6: Final answer
    x = 17,857.60

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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.