Home / 27,983.28-38,617.38-15,408.03

Finding the Fourth Proportional to 27,983.28, 38,617.38 and 15,408.03

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Solution

The fourth proportional to 27,983.28, 38,617.38 and 15,408.03 is: 21,263.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,983.28 : 38,617.38 = 15,408.03 : x
  2. Step 2: Convert to fraction form
    27,983.28/38,617.38 = 15,408.03/x
  3. Step 3: Cross multiply
    27,983.28x = 38,617.38 × 15,408.03
  4. Step 4: Simplify right side
    27,983.28x = 595,017,749.56
  5. Step 5: Solve for x
    x = 595,017,749.56/27,983.28
  6. Step 6: Final answer
    x = 21,263.33

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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.