Home / 21,998.34-30,357.77-11,926.76

Finding the Fourth Proportional to 21,998.34, 30,357.77 and 11,926.76

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Solution

The fourth proportional to 21,998.34, 30,357.77 and 11,926.76 is: 16,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.34 : 30,357.77 = 11,926.76 : x
  2. Step 2: Convert to fraction form
    21,998.34/30,357.77 = 11,926.76/x
  3. Step 3: Cross multiply
    21,998.34x = 30,357.77 × 11,926.76
  4. Step 4: Simplify right side
    21,998.34x = 362,069,625.50
  5. Step 5: Solve for x
    x = 362,069,625.50/21,998.34
  6. Step 6: Final answer
    x = 16,458.95

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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.