Home / 40,851.81-61,191.54-18,683.82

Finding the Fourth Proportional to 40,851.81, 61,191.54 and 18,683.82

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Solution

The fourth proportional to 40,851.81, 61,191.54 and 18,683.82 is: 27,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,851.81 : 61,191.54 = 18,683.82 : x
  2. Step 2: Convert to fraction form
    40,851.81/61,191.54 = 18,683.82/x
  3. Step 3: Cross multiply
    40,851.81x = 61,191.54 × 18,683.82
  4. Step 4: Simplify right side
    40,851.81x = 1,143,291,718.88
  5. Step 5: Solve for x
    x = 1,143,291,718.88/40,851.81
  6. Step 6: Final answer
    x = 27,986.32

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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.