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Finding the Fourth Proportional to 28,846.40, 39,808.40 and 16,100.82

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Solution

The fourth proportional to 28,846.40, 39,808.40 and 16,100.82 is: 22,219.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,846.40 : 39,808.40 = 16,100.82 : x
  2. Step 2: Convert to fraction form
    28,846.40/39,808.40 = 16,100.82/x
  3. Step 3: Cross multiply
    28,846.40x = 39,808.40 × 16,100.82
  4. Step 4: Simplify right side
    28,846.40x = 640,947,802.38
  5. Step 5: Solve for x
    x = 640,947,802.38/28,846.40
  6. Step 6: Final answer
    x = 22,219.34

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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.