Home / 27,845.34-38,426.10-15,745.63

Finding the Fourth Proportional to 27,845.34, 38,426.10 and 15,745.63

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Solution

The fourth proportional to 27,845.34, 38,426.10 and 15,745.63 is: 21,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,845.34 : 38,426.10 = 15,745.63 : x
  2. Step 2: Convert to fraction form
    27,845.34/38,426.10 = 15,745.63/x
  3. Step 3: Cross multiply
    27,845.34x = 38,426.10 × 15,745.63
  4. Step 4: Simplify right side
    27,845.34x = 605,042,960.81
  5. Step 5: Solve for x
    x = 605,042,960.81/27,845.34
  6. Step 6: Final answer
    x = 21,728.70

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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.