Home / 43,021.85-64,532.80-13,442.22

Finding the Fourth Proportional to 43,021.85, 64,532.80 and 13,442.22

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Solution

The fourth proportional to 43,021.85, 64,532.80 and 13,442.22 is: 20,163.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,021.85 : 64,532.80 = 13,442.22 : x
  2. Step 2: Convert to fraction form
    43,021.85/64,532.80 = 13,442.22/x
  3. Step 3: Cross multiply
    43,021.85x = 64,532.80 × 13,442.22
  4. Step 4: Simplify right side
    43,021.85x = 867,464,111.62
  5. Step 5: Solve for x
    x = 867,464,111.62/43,021.85
  6. Step 6: Final answer
    x = 20,163.34

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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.