Home / 29,451.16-40,659.36-19,408.78

Finding the Fourth Proportional to 29,451.16, 40,659.36 and 19,408.78

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Solution

The fourth proportional to 29,451.16, 40,659.36 and 19,408.78 is: 26,795.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,451.16 : 40,659.36 = 19,408.78 : x
  2. Step 2: Convert to fraction form
    29,451.16/40,659.36 = 19,408.78/x
  3. Step 3: Cross multiply
    29,451.16x = 40,659.36 × 19,408.78
  4. Step 4: Simplify right side
    29,451.16x = 789,148,573.18
  5. Step 5: Solve for x
    x = 789,148,573.18/29,451.16
  6. Step 6: Final answer
    x = 26,795.16

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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.