Home / 35,284.87-48,690.07-20,172.70

Finding the Fourth Proportional to 35,284.87, 48,690.07 and 20,172.70

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Solution

The fourth proportional to 35,284.87, 48,690.07 and 20,172.70 is: 27,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,284.87 : 48,690.07 = 20,172.70 : x
  2. Step 2: Convert to fraction form
    35,284.87/48,690.07 = 20,172.70/x
  3. Step 3: Cross multiply
    35,284.87x = 48,690.07 × 20,172.70
  4. Step 4: Simplify right side
    35,284.87x = 982,210,175.09
  5. Step 5: Solve for x
    x = 982,210,175.09/35,284.87
  6. Step 6: Final answer
    x = 27,836.58

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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.