Home / 28,028.96-38,753.76-26,789.60

Finding the Fourth Proportional to 28,028.96, 38,753.76 and 26,789.60

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Solution

The fourth proportional to 28,028.96, 38,753.76 and 26,789.60 is: 37,040.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028.96 : 38,753.76 = 26,789.60 : x
  2. Step 2: Convert to fraction form
    28,028.96/38,753.76 = 26,789.60/x
  3. Step 3: Cross multiply
    28,028.96x = 38,753.76 × 26,789.60
  4. Step 4: Simplify right side
    28,028.96x = 1,038,197,728.90
  5. Step 5: Solve for x
    x = 1,038,197,728.90/28,028.96
  6. Step 6: Final answer
    x = 37,040.18

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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.