Home / 30,226.89-41,669.14-21,123.99

Finding the Fourth Proportional to 30,226.89, 41,669.14 and 21,123.99

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Solution

The fourth proportional to 30,226.89, 41,669.14 and 21,123.99 is: 29,120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,226.89 : 41,669.14 = 21,123.99 : x
  2. Step 2: Convert to fraction form
    30,226.89/41,669.14 = 21,123.99/x
  3. Step 3: Cross multiply
    30,226.89x = 41,669.14 × 21,123.99
  4. Step 4: Simplify right side
    30,226.89x = 880,218,288.32
  5. Step 5: Solve for x
    x = 880,218,288.32/30,226.89
  6. Step 6: Final answer
    x = 29,120.38

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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.