Home / 43,021.10-64,532.74-20,830.34

Finding the Fourth Proportional to 43,021.10, 64,532.74 and 20,830.34

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Solution

The fourth proportional to 43,021.10, 64,532.74 and 20,830.34 is: 31,246.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,021.10 : 64,532.74 = 20,830.34 : x
  2. Step 2: Convert to fraction form
    43,021.10/64,532.74 = 20,830.34/x
  3. Step 3: Cross multiply
    43,021.10x = 64,532.74 × 20,830.34
  4. Step 4: Simplify right side
    43,021.10x = 1,344,238,915.33
  5. Step 5: Solve for x
    x = 1,344,238,915.33/43,021.10
  6. Step 6: Final answer
    x = 31,246.04

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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.