Home / 28,558.25-42,840.27-9,835.85

Finding the Fourth Proportional to 28,558.25, 42,840.27 and 9,835.85

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Solution

The fourth proportional to 28,558.25, 42,840.27 and 9,835.85 is: 14,754.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.25 : 42,840.27 = 9,835.85 : x
  2. Step 2: Convert to fraction form
    28,558.25/42,840.27 = 9,835.85/x
  3. Step 3: Cross multiply
    28,558.25x = 42,840.27 × 9,835.85
  4. Step 4: Simplify right side
    28,558.25x = 421,370,255.48
  5. Step 5: Solve for x
    x = 421,370,255.48/28,558.25
  6. Step 6: Final answer
    x = 14,754.77

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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.