Home / 26,712.16-36,823.44-21,028.68

Finding the Fourth Proportional to 26,712.16, 36,823.44 and 21,028.68

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Solution

The fourth proportional to 26,712.16, 36,823.44 and 21,028.68 is: 28,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,712.16 : 36,823.44 = 21,028.68 : x
  2. Step 2: Convert to fraction form
    26,712.16/36,823.44 = 21,028.68/x
  3. Step 3: Cross multiply
    26,712.16x = 36,823.44 × 21,028.68
  4. Step 4: Simplify right side
    26,712.16x = 774,348,336.26
  5. Step 5: Solve for x
    x = 774,348,336.26/26,712.16
  6. Step 6: Final answer
    x = 28,988.61

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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.