Home / 43,164.41-64,729.58-20,971.22

Finding the Fourth Proportional to 43,164.41, 64,729.58 and 20,971.22

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Solution

The fourth proportional to 43,164.41, 64,729.58 and 20,971.22 is: 31,448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,164.41 : 64,729.58 = 20,971.22 : x
  2. Step 2: Convert to fraction form
    43,164.41/64,729.58 = 20,971.22/x
  3. Step 3: Cross multiply
    43,164.41x = 64,729.58 × 20,971.22
  4. Step 4: Simplify right side
    43,164.41x = 1,357,457,834.18
  5. Step 5: Solve for x
    x = 1,357,457,834.18/43,164.41
  6. Step 6: Final answer
    x = 31,448.55

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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.