Home / 42,741.14-64,124.66-20,548.22

Finding the Fourth Proportional to 42,741.14, 64,124.66 and 20,548.22

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Solution

The fourth proportional to 42,741.14, 64,124.66 and 20,548.22 is: 30,828.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,741.14 : 64,124.66 = 20,548.22 : x
  2. Step 2: Convert to fraction form
    42,741.14/64,124.66 = 20,548.22/x
  3. Step 3: Cross multiply
    42,741.14x = 64,124.66 × 20,548.22
  4. Step 4: Simplify right side
    42,741.14x = 1,317,647,351.85
  5. Step 5: Solve for x
    x = 1,317,647,351.85/42,741.14
  6. Step 6: Final answer
    x = 30,828.55

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1.5x scale

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.