Home / 19,142.64-26,408.16-13,829.04

Finding the Fourth Proportional to 19,142.64, 26,408.16 and 13,829.04

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Solution

The fourth proportional to 19,142.64, 26,408.16 and 13,829.04 is: 19,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.64 : 26,408.16 = 13,829.04 : x
  2. Step 2: Convert to fraction form
    19,142.64/26,408.16 = 13,829.04/x
  3. Step 3: Cross multiply
    19,142.64x = 26,408.16 × 13,829.04
  4. Step 4: Simplify right side
    19,142.64x = 365,199,500.97
  5. Step 5: Solve for x
    x = 365,199,500.97/19,142.64
  6. Step 6: Final answer
    x = 19,077.80

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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.