Home / 27,810.22-38,383.44-21,748.45

Finding the Fourth Proportional to 27,810.22, 38,383.44 and 21,748.45

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Solution

The fourth proportional to 27,810.22, 38,383.44 and 21,748.45 is: 30,017.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,810.22 : 38,383.44 = 21,748.45 : x
  2. Step 2: Convert to fraction form
    27,810.22/38,383.44 = 21,748.45/x
  3. Step 3: Cross multiply
    27,810.22x = 38,383.44 × 21,748.45
  4. Step 4: Simplify right side
    27,810.22x = 834,780,325.67
  5. Step 5: Solve for x
    x = 834,780,325.67/27,810.22
  6. Step 6: Final answer
    x = 30,017.03

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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.