Home / 28,085.09-42,123.05-9,365.28

Finding the Fourth Proportional to 28,085.09, 42,123.05 and 9,365.28

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Solution

The fourth proportional to 28,085.09, 42,123.05 and 9,365.28 is: 14,046.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.09 : 42,123.05 = 9,365.28 : x
  2. Step 2: Convert to fraction form
    28,085.09/42,123.05 = 9,365.28/x
  3. Step 3: Cross multiply
    28,085.09x = 42,123.05 × 9,365.28
  4. Step 4: Simplify right side
    28,085.09x = 394,494,146.00
  5. Step 5: Solve for x
    x = 394,494,146.00/28,085.09
  6. Step 6: Final answer
    x = 14,046.39

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1.5x scale

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.