Home / 28,491.75-39,318.62-17,313.75

Finding the Fourth Proportional to 28,491.75, 39,318.62 and 17,313.75

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Solution

The fourth proportional to 28,491.75, 39,318.62 and 17,313.75 is: 23,892.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,491.75 : 39,318.62 = 17,313.75 : x
  2. Step 2: Convert to fraction form
    28,491.75/39,318.62 = 17,313.75/x
  3. Step 3: Cross multiply
    28,491.75x = 39,318.62 × 17,313.75
  4. Step 4: Simplify right side
    28,491.75x = 680,752,670.46
  5. Step 5: Solve for x
    x = 680,752,670.46/28,491.75
  6. Step 6: Final answer
    x = 23,892.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.