Home / 27,738.36-38,285.64-15,804.63

Finding the Fourth Proportional to 27,738.36, 38,285.64 and 15,804.63

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Solution

The fourth proportional to 27,738.36, 38,285.64 and 15,804.63 is: 21,814.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.36 : 38,285.64 = 15,804.63 : x
  2. Step 2: Convert to fraction form
    27,738.36/38,285.64 = 15,804.63/x
  3. Step 3: Cross multiply
    27,738.36x = 38,285.64 × 15,804.63
  4. Step 4: Simplify right side
    27,738.36x = 605,090,374.51
  5. Step 5: Solve for x
    x = 605,090,374.51/27,738.36
  6. Step 6: Final answer
    x = 21,814.21

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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.