Home / 28,990.75-39,707.45-27,288.54

Finding the Fourth Proportional to 28,990.75, 39,707.45 and 27,288.54

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Solution

The fourth proportional to 28,990.75, 39,707.45 and 27,288.54 is: 37,376.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.75 : 39,707.45 = 27,288.54 : x
  2. Step 2: Convert to fraction form
    28,990.75/39,707.45 = 27,288.54/x
  3. Step 3: Cross multiply
    28,990.75x = 39,707.45 × 27,288.54
  4. Step 4: Simplify right side
    28,990.75x = 1,083,558,337.62
  5. Step 5: Solve for x
    x = 1,083,558,337.62/28,990.75
  6. Step 6: Final answer
    x = 37,376.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.