Home / 43,316.32-64,938.03-21,118.27

Finding the Fourth Proportional to 43,316.32, 64,938.03 and 21,118.27

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Solution

The fourth proportional to 43,316.32, 64,938.03 and 21,118.27 is: 31,659.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,316.32 : 64,938.03 = 21,118.27 : x
  2. Step 2: Convert to fraction form
    43,316.32/64,938.03 = 21,118.27/x
  3. Step 3: Cross multiply
    43,316.32x = 64,938.03 × 21,118.27
  4. Step 4: Simplify right side
    43,316.32x = 1,371,378,850.81
  5. Step 5: Solve for x
    x = 1,371,378,850.81/43,316.32
  6. Step 6: Final answer
    x = 31,659.63

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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.