Home / 31,979.41-47,907.60-17,896.80

Finding the Fourth Proportional to 31,979.41, 47,907.60 and 17,896.80

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Solution

The fourth proportional to 31,979.41, 47,907.60 and 17,896.80 is: 26,810.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.41 : 47,907.60 = 17,896.80 : x
  2. Step 2: Convert to fraction form
    31,979.41/47,907.60 = 17,896.80/x
  3. Step 3: Cross multiply
    31,979.41x = 47,907.60 × 17,896.80
  4. Step 4: Simplify right side
    31,979.41x = 857,392,679.41
  5. Step 5: Solve for x
    x = 857,392,679.41/31,979.41
  6. Step 6: Final answer
    x = 26,810.77

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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.