Home / 27,745.74-38,301.48-21,370.02

Finding the Fourth Proportional to 27,745.74, 38,301.48 and 21,370.02

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Solution

The fourth proportional to 27,745.74, 38,301.48 and 21,370.02 is: 29,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,745.74 : 38,301.48 = 21,370.02 : x
  2. Step 2: Convert to fraction form
    27,745.74/38,301.48 = 21,370.02/x
  3. Step 3: Cross multiply
    27,745.74x = 38,301.48 × 21,370.02
  4. Step 4: Simplify right side
    27,745.74x = 818,503,393.63
  5. Step 5: Solve for x
    x = 818,503,393.63/27,745.74
  6. Step 6: Final answer
    x = 29,500.15

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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.