Home / 22,950.09-31,672.77-12,879.51

Finding the Fourth Proportional to 22,950.09, 31,672.77 and 12,879.51

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Solution

The fourth proportional to 22,950.09, 31,672.77 and 12,879.51 is: 17,774.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,950.09 : 31,672.77 = 12,879.51 : x
  2. Step 2: Convert to fraction form
    22,950.09/31,672.77 = 12,879.51/x
  3. Step 3: Cross multiply
    22,950.09x = 31,672.77 × 12,879.51
  4. Step 4: Simplify right side
    22,950.09x = 407,929,757.94
  5. Step 5: Solve for x
    x = 407,929,757.94/22,950.09
  6. Step 6: Final answer
    x = 17,774.65

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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.