Home / 25,828.11-35,636.22-15,755.90

Finding the Fourth Proportional to 25,828.11, 35,636.22 and 15,755.90

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Solution

The fourth proportional to 25,828.11, 35,636.22 and 15,755.90 is: 21,739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,828.11 : 35,636.22 = 15,755.90 : x
  2. Step 2: Convert to fraction form
    25,828.11/35,636.22 = 15,755.90/x
  3. Step 3: Cross multiply
    25,828.11x = 35,636.22 × 15,755.90
  4. Step 4: Simplify right side
    25,828.11x = 561,480,540.52
  5. Step 5: Solve for x
    x = 561,480,540.52/25,828.11
  6. Step 6: Final answer
    x = 21,739.13

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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.