Home / 28,826.82-39,438.90-28,702.35

Finding the Fourth Proportional to 28,826.82, 39,438.90 and 28,702.35

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Solution

The fourth proportional to 28,826.82, 39,438.90 and 28,702.35 is: 39,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,826.82 : 39,438.90 = 28,702.35 : x
  2. Step 2: Convert to fraction form
    28,826.82/39,438.90 = 28,702.35/x
  3. Step 3: Cross multiply
    28,826.82x = 39,438.90 × 28,702.35
  4. Step 4: Simplify right side
    28,826.82x = 1,131,989,111.42
  5. Step 5: Solve for x
    x = 1,131,989,111.42/28,826.82
  6. Step 6: Final answer
    x = 39,268.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.