Home / 23,178.49-31,986.01-12,567.90

Finding the Fourth Proportional to 23,178.49, 31,986.01 and 12,567.90

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Solution

The fourth proportional to 23,178.49, 31,986.01 and 12,567.90 is: 17,343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,178.49 : 31,986.01 = 12,567.90 : x
  2. Step 2: Convert to fraction form
    23,178.49/31,986.01 = 12,567.90/x
  3. Step 3: Cross multiply
    23,178.49x = 31,986.01 × 12,567.90
  4. Step 4: Simplify right side
    23,178.49x = 401,996,975.08
  5. Step 5: Solve for x
    x = 401,996,975.08/23,178.49
  6. Step 6: Final answer
    x = 17,343.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.