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Finding the Fourth Proportional to 44,300.40, 66,469.80 and 20,914.80

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Solution

The fourth proportional to 44,300.40, 66,469.80 and 20,914.80 is: 31,381.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,300.40 : 66,469.80 = 20,914.80 : x
  2. Step 2: Convert to fraction form
    44,300.40/66,469.80 = 20,914.80/x
  3. Step 3: Cross multiply
    44,300.40x = 66,469.80 × 20,914.80
  4. Step 4: Simplify right side
    44,300.40x = 1,390,202,573.04
  5. Step 5: Solve for x
    x = 1,390,202,573.04/44,300.40
  6. Step 6: Final answer
    x = 31,381.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.