Home / 28,485.60-39,313.79-17,160.99

Finding the Fourth Proportional to 28,485.60, 39,313.79 and 17,160.99

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Solution

The fourth proportional to 28,485.60, 39,313.79 and 17,160.99 is: 23,684.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,485.60 : 39,313.79 = 17,160.99 : x
  2. Step 2: Convert to fraction form
    28,485.60/39,313.79 = 17,160.99/x
  3. Step 3: Cross multiply
    28,485.60x = 39,313.79 × 17,160.99
  4. Step 4: Simplify right side
    28,485.60x = 674,663,557.05
  5. Step 5: Solve for x
    x = 674,663,557.05/28,485.60
  6. Step 6: Final answer
    x = 23,684.37

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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.