Home / 28,828.40-43,140.20-26,370.80

Finding the Fourth Proportional to 28,828.40, 43,140.20 and 26,370.80

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Solution

The fourth proportional to 28,828.40, 43,140.20 and 26,370.80 is: 39,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.40 : 43,140.20 = 26,370.80 : x
  2. Step 2: Convert to fraction form
    28,828.40/43,140.20 = 26,370.80/x
  3. Step 3: Cross multiply
    28,828.40x = 43,140.20 × 26,370.80
  4. Step 4: Simplify right side
    28,828.40x = 1,137,641,586.16
  5. Step 5: Solve for x
    x = 1,137,641,586.16/28,828.40
  6. Step 6: Final answer
    x = 39,462.53

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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.