Home / 31,748.74-43,813.44-18,320.56

Finding the Fourth Proportional to 31,748.74, 43,813.44 and 18,320.56

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Solution

The fourth proportional to 31,748.74, 43,813.44 and 18,320.56 is: 25,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,748.74 : 43,813.44 = 18,320.56 : x
  2. Step 2: Convert to fraction form
    31,748.74/43,813.44 = 18,320.56/x
  3. Step 3: Cross multiply
    31,748.74x = 43,813.44 × 18,320.56
  4. Step 4: Simplify right side
    31,748.74x = 802,686,756.33
  5. Step 5: Solve for x
    x = 802,686,756.33/31,748.74
  6. Step 6: Final answer
    x = 25,282.48

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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.