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Finding the Fourth Proportional to 33,890, 46,771.08 and 18,988.88

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Solution

The fourth proportional to 33,890, 46,771.08 and 18,988.88 is: 26,206.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,890 : 46,771.08 = 18,988.88 : x
  2. Step 2: Convert to fraction form
    33,890/46,771.08 = 18,988.88/x
  3. Step 3: Cross multiply
    33,890x = 46,771.08 × 18,988.88
  4. Step 4: Simplify right side
    33,890x = 888,130,425.59
  5. Step 5: Solve for x
    x = 888,130,425.59/33,890
  6. Step 6: Final answer
    x = 26,206.27

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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.