Home / 17,879.91-24,670.44-12,139.35

Finding the Fourth Proportional to 17,879.91, 24,670.44 and 12,139.35

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Solution

The fourth proportional to 17,879.91, 24,670.44 and 12,139.35 is: 16,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.91 : 24,670.44 = 12,139.35 : x
  2. Step 2: Convert to fraction form
    17,879.91/24,670.44 = 12,139.35/x
  3. Step 3: Cross multiply
    17,879.91x = 24,670.44 × 12,139.35
  4. Step 4: Simplify right side
    17,879.91x = 299,483,105.81
  5. Step 5: Solve for x
    x = 299,483,105.81/17,879.91
  6. Step 6: Final answer
    x = 16,749.70

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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.