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Finding the Fourth Proportional to 36,014.40, 54,045.90 and 21,207.60

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Solution

The fourth proportional to 36,014.40, 54,045.90 and 21,207.60 is: 31,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,014.40 : 54,045.90 = 21,207.60 : x
  2. Step 2: Convert to fraction form
    36,014.40/54,045.90 = 21,207.60/x
  3. Step 3: Cross multiply
    36,014.40x = 54,045.90 × 21,207.60
  4. Step 4: Simplify right side
    36,014.40x = 1,146,183,828.84
  5. Step 5: Solve for x
    x = 1,146,183,828.84/36,014.40
  6. Step 6: Final answer
    x = 31,825.71

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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.