Home / 28,826.40-43,137.20-26,368.80

Finding the Fourth Proportional to 28,826.40, 43,137.20 and 26,368.80

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Solution

The fourth proportional to 28,826.40, 43,137.20 and 26,368.80 is: 39,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,826.40 : 43,137.20 = 26,368.80 : x
  2. Step 2: Convert to fraction form
    28,826.40/43,137.20 = 26,368.80/x
  3. Step 3: Cross multiply
    28,826.40x = 43,137.20 × 26,368.80
  4. Step 4: Simplify right side
    28,826.40x = 1,137,476,199.36
  5. Step 5: Solve for x
    x = 1,137,476,199.36/28,826.40
  6. Step 6: Final answer
    x = 39,459.53

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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.