Home / 27,749.44-38,290.40-15,810.48

Finding the Fourth Proportional to 27,749.44, 38,290.40 and 15,810.48

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Solution

The fourth proportional to 27,749.44, 38,290.40 and 15,810.48 is: 21,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,749.44 : 38,290.40 = 15,810.48 : x
  2. Step 2: Convert to fraction form
    27,749.44/38,290.40 = 15,810.48/x
  3. Step 3: Cross multiply
    27,749.44x = 38,290.40 × 15,810.48
  4. Step 4: Simplify right side
    27,749.44x = 605,389,603.39
  5. Step 5: Solve for x
    x = 605,389,603.39/27,749.44
  6. Step 6: Final answer
    x = 21,816.28

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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.