Home / 38,977.44-53,788.83-21,072.45

Finding the Fourth Proportional to 38,977.44, 53,788.83 and 21,072.45

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Solution

The fourth proportional to 38,977.44, 53,788.83 and 21,072.45 is: 29,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,977.44 : 53,788.83 = 21,072.45 : x
  2. Step 2: Convert to fraction form
    38,977.44/53,788.83 = 21,072.45/x
  3. Step 3: Cross multiply
    38,977.44x = 53,788.83 × 21,072.45
  4. Step 4: Simplify right side
    38,977.44x = 1,133,462,731.22
  5. Step 5: Solve for x
    x = 1,133,462,731.22/38,977.44
  6. Step 6: Final answer
    x = 29,079.97

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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.