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Finding the Fourth Proportional to 33,990.70, 46,913.84 and 21,718.22

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Solution

The fourth proportional to 33,990.70, 46,913.84 and 21,718.22 is: 29,975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,990.70 : 46,913.84 = 21,718.22 : x
  2. Step 2: Convert to fraction form
    33,990.70/46,913.84 = 21,718.22/x
  3. Step 3: Cross multiply
    33,990.70x = 46,913.84 × 21,718.22
  4. Step 4: Simplify right side
    33,990.70x = 1,018,885,098.16
  5. Step 5: Solve for x
    x = 1,018,885,098.16/33,990.70
  6. Step 6: Final answer
    x = 29,975.41

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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.