Home / 47,987.94-71,986.23-12,926.82

Finding the Fourth Proportional to 47,987.94, 71,986.23 and 12,926.82

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Solution

The fourth proportional to 47,987.94, 71,986.23 and 12,926.82 is: 19,391.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,987.94 : 71,986.23 = 12,926.82 : x
  2. Step 2: Convert to fraction form
    47,987.94/71,986.23 = 12,926.82/x
  3. Step 3: Cross multiply
    47,987.94x = 71,986.23 × 12,926.82
  4. Step 4: Simplify right side
    47,987.94x = 930,553,037.69
  5. Step 5: Solve for x
    x = 930,553,037.69/47,987.94
  6. Step 6: Final answer
    x = 19,391.39

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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.