Home / 38,736.04-53,453.49-21,738.70

Finding the Fourth Proportional to 38,736.04, 53,453.49 and 21,738.70

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Solution

The fourth proportional to 38,736.04, 53,453.49 and 21,738.70 is: 29,998.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,736.04 : 53,453.49 = 21,738.70 : x
  2. Step 2: Convert to fraction form
    38,736.04/53,453.49 = 21,738.70/x
  3. Step 3: Cross multiply
    38,736.04x = 53,453.49 × 21,738.70
  4. Step 4: Simplify right side
    38,736.04x = 1,162,009,458.07
  5. Step 5: Solve for x
    x = 1,162,009,458.07/38,736.04
  6. Step 6: Final answer
    x = 29,998.15

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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.