Home / 31,496.04-43,450.02-20,321.64

Finding the Fourth Proportional to 31,496.04, 43,450.02 and 20,321.64

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Solution

The fourth proportional to 31,496.04, 43,450.02 and 20,321.64 is: 28,034.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,496.04 : 43,450.02 = 20,321.64 : x
  2. Step 2: Convert to fraction form
    31,496.04/43,450.02 = 20,321.64/x
  3. Step 3: Cross multiply
    31,496.04x = 43,450.02 × 20,321.64
  4. Step 4: Simplify right side
    31,496.04x = 882,975,664.43
  5. Step 5: Solve for x
    x = 882,975,664.43/31,496.04
  6. Step 6: Final answer
    x = 28,034.50

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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.