Home / 35,639.60-49,183.40-19,724.72

Finding the Fourth Proportional to 35,639.60, 49,183.40 and 19,724.72

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Solution

The fourth proportional to 35,639.60, 49,183.40 and 19,724.72 is: 27,220.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,639.60 : 49,183.40 = 19,724.72 : x
  2. Step 2: Convert to fraction form
    35,639.60/49,183.40 = 19,724.72/x
  3. Step 3: Cross multiply
    35,639.60x = 49,183.40 × 19,724.72
  4. Step 4: Simplify right side
    35,639.60x = 970,128,597.04
  5. Step 5: Solve for x
    x = 970,128,597.04/35,639.60
  6. Step 6: Final answer
    x = 27,220.53

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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.