Home / 27,983.86-38,617.69-15,408.50

Finding the Fourth Proportional to 27,983.86, 38,617.69 and 15,408.50

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Solution

The fourth proportional to 27,983.86, 38,617.69 and 15,408.50 is: 21,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,983.86 : 38,617.69 = 15,408.50 : x
  2. Step 2: Convert to fraction form
    27,983.86/38,617.69 = 15,408.50/x
  3. Step 3: Cross multiply
    27,983.86x = 38,617.69 × 15,408.50
  4. Step 4: Simplify right side
    27,983.86x = 595,040,676.37
  5. Step 5: Solve for x
    x = 595,040,676.37/27,983.86
  6. Step 6: Final answer
    x = 21,263.71

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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.