Home / 38,869.49-53,639.25-21,873.72

Finding the Fourth Proportional to 38,869.49, 53,639.25 and 21,873.72

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Solution

The fourth proportional to 38,869.49, 53,639.25 and 21,873.72 is: 30,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,869.49 : 53,639.25 = 21,873.72 : x
  2. Step 2: Convert to fraction form
    38,869.49/53,639.25 = 21,873.72/x
  3. Step 3: Cross multiply
    38,869.49x = 53,639.25 × 21,873.72
  4. Step 4: Simplify right side
    38,869.49x = 1,173,289,734.36
  5. Step 5: Solve for x
    x = 1,173,289,734.36/38,869.49
  6. Step 6: Final answer
    x = 30,185.36

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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.