Home / 21,998.99-30,359-11,927.77

Finding the Fourth Proportional to 21,998.99, 30,359 and 11,927.77

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Solution

The fourth proportional to 21,998.99, 30,359 and 11,927.77 is: 16,460.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.99 : 30,359 = 11,927.77 : x
  2. Step 2: Convert to fraction form
    21,998.99/30,359 = 11,927.77/x
  3. Step 3: Cross multiply
    21,998.99x = 30,359 × 11,927.77
  4. Step 4: Simplify right side
    21,998.99x = 362,115,169.43
  5. Step 5: Solve for x
    x = 362,115,169.43/21,998.99
  6. Step 6: Final answer
    x = 16,460.54

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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.