Home / 28,990.50-39,707.12-27,288.28

Finding the Fourth Proportional to 28,990.50, 39,707.12 and 27,288.28

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Solution

The fourth proportional to 28,990.50, 39,707.12 and 27,288.28 is: 37,375.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.50 : 39,707.12 = 27,288.28 : x
  2. Step 2: Convert to fraction form
    28,990.50/39,707.12 = 27,288.28/x
  3. Step 3: Cross multiply
    28,990.50x = 39,707.12 × 27,288.28
  4. Step 4: Simplify right side
    28,990.50x = 1,083,539,008.55
  5. Step 5: Solve for x
    x = 1,083,539,008.55/28,990.50
  6. Step 6: Final answer
    x = 37,375.66

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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.