Home / 33,118.81-45,702.94-18,779.95

Finding the Fourth Proportional to 33,118.81, 45,702.94 and 18,779.95

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Solution

The fourth proportional to 33,118.81, 45,702.94 and 18,779.95 is: 25,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,118.81 : 45,702.94 = 18,779.95 : x
  2. Step 2: Convert to fraction form
    33,118.81/45,702.94 = 18,779.95/x
  3. Step 3: Cross multiply
    33,118.81x = 45,702.94 × 18,779.95
  4. Step 4: Simplify right side
    33,118.81x = 858,298,928.05
  5. Step 5: Solve for x
    x = 858,298,928.05/33,118.81
  6. Step 6: Final answer
    x = 25,915.75

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1.5x scale

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.