Home / 21,876.48-30,216.96-19,226.88

Finding the Fourth Proportional to 21,876.48, 30,216.96 and 19,226.88

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Solution

The fourth proportional to 21,876.48, 30,216.96 and 19,226.88 is: 26,557.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,876.48 : 30,216.96 = 19,226.88 : x
  2. Step 2: Convert to fraction form
    21,876.48/30,216.96 = 19,226.88/x
  3. Step 3: Cross multiply
    21,876.48x = 30,216.96 × 19,226.88
  4. Step 4: Simplify right side
    21,876.48x = 580,977,863.88
  5. Step 5: Solve for x
    x = 580,977,863.88/21,876.48
  6. Step 6: Final answer
    x = 26,557.19

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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.