Home / 21,622.49-32,218.79-19,264.38

Finding the Fourth Proportional to 21,622.49, 32,218.79 and 19,264.38

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Solution

The fourth proportional to 21,622.49, 32,218.79 and 19,264.38 is: 28,705.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.49 : 32,218.79 = 19,264.38 : x
  2. Step 2: Convert to fraction form
    21,622.49/32,218.79 = 19,264.38/x
  3. Step 3: Cross multiply
    21,622.49x = 32,218.79 × 19,264.38
  4. Step 4: Simplify right side
    21,622.49x = 620,675,013.70
  5. Step 5: Solve for x
    x = 620,675,013.70/21,622.49
  6. Step 6: Final answer
    x = 28,705.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.