Home / 27,808.22-38,380.68-21,746.45

Finding the Fourth Proportional to 27,808.22, 38,380.68 and 21,746.45

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Solution

The fourth proportional to 27,808.22, 38,380.68 and 21,746.45 is: 30,014.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,808.22 : 38,380.68 = 21,746.45 : x
  2. Step 2: Convert to fraction form
    27,808.22/38,380.68 = 21,746.45/x
  3. Step 3: Cross multiply
    27,808.22x = 38,380.68 × 21,746.45
  4. Step 4: Simplify right side
    27,808.22x = 834,643,409.06
  5. Step 5: Solve for x
    x = 834,643,409.06/27,808.22
  6. Step 6: Final answer
    x = 30,014.27

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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.