Home / 26,690.76-36,790.83-21,016.51

Finding the Fourth Proportional to 26,690.76, 36,790.83 and 21,016.51

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Solution

The fourth proportional to 26,690.76, 36,790.83 and 21,016.51 is: 28,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,690.76 : 36,790.83 = 21,016.51 : x
  2. Step 2: Convert to fraction form
    26,690.76/36,790.83 = 21,016.51/x
  3. Step 3: Cross multiply
    26,690.76x = 36,790.83 × 21,016.51
  4. Step 4: Simplify right side
    26,690.76x = 773,214,846.60
  5. Step 5: Solve for x
    x = 773,214,846.60/26,690.76
  6. Step 6: Final answer
    x = 28,969.38

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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.