Home / 25,399.12-35,026.68-19,431.04

Finding the Fourth Proportional to 25,399.12, 35,026.68 and 19,431.04

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Solution

The fourth proportional to 25,399.12, 35,026.68 and 19,431.04 is: 26,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,399.12 : 35,026.68 = 19,431.04 : x
  2. Step 2: Convert to fraction form
    25,399.12/35,026.68 = 19,431.04/x
  3. Step 3: Cross multiply
    25,399.12x = 35,026.68 × 19,431.04
  4. Step 4: Simplify right side
    25,399.12x = 680,604,820.15
  5. Step 5: Solve for x
    x = 680,604,820.15/25,399.12
  6. Step 6: Final answer
    x = 26,796.39

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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.