Home / 27,879.99-38,473.34-15,943.02

Finding the Fourth Proportional to 27,879.99, 38,473.34 and 15,943.02

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Solution

The fourth proportional to 27,879.99, 38,473.34 and 15,943.02 is: 22,000.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,879.99 : 38,473.34 = 15,943.02 : x
  2. Step 2: Convert to fraction form
    27,879.99/38,473.34 = 15,943.02/x
  3. Step 3: Cross multiply
    27,879.99x = 38,473.34 × 15,943.02
  4. Step 4: Simplify right side
    27,879.99x = 613,381,229.09
  5. Step 5: Solve for x
    x = 613,381,229.09/27,879.99
  6. Step 6: Final answer
    x = 22,000.77

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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.