Home / 31,736.74-43,795.01-18,307.20

Finding the Fourth Proportional to 31,736.74, 43,795.01 and 18,307.20

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Solution

The fourth proportional to 31,736.74, 43,795.01 and 18,307.20 is: 25,262.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,736.74 : 43,795.01 = 18,307.20 : x
  2. Step 2: Convert to fraction form
    31,736.74/43,795.01 = 18,307.20/x
  3. Step 3: Cross multiply
    31,736.74x = 43,795.01 × 18,307.20
  4. Step 4: Simplify right side
    31,736.74x = 801,764,007.07
  5. Step 5: Solve for x
    x = 801,764,007.07/31,736.74
  6. Step 6: Final answer
    x = 25,262.96

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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.