Home / 28,383.75-42,581.70-9,665.46

Finding the Fourth Proportional to 28,383.75, 42,581.70 and 9,665.46

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Solution

The fourth proportional to 28,383.75, 42,581.70 and 9,665.46 is: 14,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.75 : 42,581.70 = 9,665.46 : x
  2. Step 2: Convert to fraction form
    28,383.75/42,581.70 = 9,665.46/x
  3. Step 3: Cross multiply
    28,383.75x = 42,581.70 × 9,665.46
  4. Step 4: Simplify right side
    28,383.75x = 411,571,718.08
  5. Step 5: Solve for x
    x = 411,571,718.08/28,383.75
  6. Step 6: Final answer
    x = 14,500.26

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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.