Home / 42,975.50-64,464.87-13,393.22

Finding the Fourth Proportional to 42,975.50, 64,464.87 and 13,393.22

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Solution

The fourth proportional to 42,975.50, 64,464.87 and 13,393.22 is: 20,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,975.50 : 64,464.87 = 13,393.22 : x
  2. Step 2: Convert to fraction form
    42,975.50/64,464.87 = 13,393.22/x
  3. Step 3: Cross multiply
    42,975.50x = 64,464.87 × 13,393.22
  4. Step 4: Simplify right side
    42,975.50x = 863,392,186.18
  5. Step 5: Solve for x
    x = 863,392,186.18/42,975.50
  6. Step 6: Final answer
    x = 20,090.33

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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.