Home / 42,811.90-64,194.51-13,224.22

Finding the Fourth Proportional to 42,811.90, 64,194.51 and 13,224.22

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Solution

The fourth proportional to 42,811.90, 64,194.51 and 13,224.22 is: 19,829.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,811.90 : 64,194.51 = 13,224.22 : x
  2. Step 2: Convert to fraction form
    42,811.90/64,194.51 = 13,224.22/x
  3. Step 3: Cross multiply
    42,811.90x = 64,194.51 × 13,224.22
  4. Step 4: Simplify right side
    42,811.90x = 848,922,323.03
  5. Step 5: Solve for x
    x = 848,922,323.03/42,811.90
  6. Step 6: Final answer
    x = 19,829.12

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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.