Home / 44,400.90-66,568.56-21,000

Finding the Fourth Proportional to 44,400.90, 66,568.56 and 21,000

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Solution

The fourth proportional to 44,400.90, 66,568.56 and 21,000 is: 31,484.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,400.90 : 66,568.56 = 21,000 : x
  2. Step 2: Convert to fraction form
    44,400.90/66,568.56 = 21,000/x
  3. Step 3: Cross multiply
    44,400.90x = 66,568.56 × 21,000
  4. Step 4: Simplify right side
    44,400.90x = 1,397,939,760
  5. Step 5: Solve for x
    x = 1,397,939,760/44,400.90
  6. Step 6: Final answer
    x = 31,484.49

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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.