Home / 47,986.94-71,984.73-12,925.82

Finding the Fourth Proportional to 47,986.94, 71,984.73 and 12,925.82

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Solution

The fourth proportional to 47,986.94, 71,984.73 and 12,925.82 is: 19,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,986.94 : 71,984.73 = 12,925.82 : x
  2. Step 2: Convert to fraction form
    47,986.94/71,984.73 = 12,925.82/x
  3. Step 3: Cross multiply
    47,986.94x = 71,984.73 × 12,925.82
  4. Step 4: Simplify right side
    47,986.94x = 930,461,891.16
  5. Step 5: Solve for x
    x = 930,461,891.16/47,986.94
  6. Step 6: Final answer
    x = 19,389.90

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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.