Home / 26,015.13-35,900.69-20,355.66

Finding the Fourth Proportional to 26,015.13, 35,900.69 and 20,355.66

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Solution

The fourth proportional to 26,015.13, 35,900.69 and 20,355.66 is: 28,090.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,015.13 : 35,900.69 = 20,355.66 : x
  2. Step 2: Convert to fraction form
    26,015.13/35,900.69 = 20,355.66/x
  3. Step 3: Cross multiply
    26,015.13x = 35,900.69 × 20,355.66
  4. Step 4: Simplify right side
    26,015.13x = 730,782,137.63
  5. Step 5: Solve for x
    x = 730,782,137.63/26,015.13
  6. Step 6: Final answer
    x = 28,090.66

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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.