Home / 43,162.26-64,649.40-20,928.56

Finding the Fourth Proportional to 43,162.26, 64,649.40 and 20,928.56

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Solution

The fourth proportional to 43,162.26, 64,649.40 and 20,928.56 is: 31,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,162.26 : 64,649.40 = 20,928.56 : x
  2. Step 2: Convert to fraction form
    43,162.26/64,649.40 = 20,928.56/x
  3. Step 3: Cross multiply
    43,162.26x = 64,649.40 × 20,928.56
  4. Step 4: Simplify right side
    43,162.26x = 1,353,018,846.86
  5. Step 5: Solve for x
    x = 1,353,018,846.86/43,162.26
  6. Step 6: Final answer
    x = 31,347.27

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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.