Home / 35,639.78-49,177.86-19,724.18

Finding the Fourth Proportional to 35,639.78, 49,177.86 and 19,724.18

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Solution

The fourth proportional to 35,639.78, 49,177.86 and 19,724.18 is: 27,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,639.78 : 49,177.86 = 19,724.18 : x
  2. Step 2: Convert to fraction form
    35,639.78/49,177.86 = 19,724.18/x
  3. Step 3: Cross multiply
    35,639.78x = 49,177.86 × 19,724.18
  4. Step 4: Simplify right side
    35,639.78x = 969,992,962.65
  5. Step 5: Solve for x
    x = 969,992,962.65/35,639.78
  6. Step 6: Final answer
    x = 27,216.58

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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.