Home / 26,447.64-39,650.64-13,111.47

Finding the Fourth Proportional to 26,447.64, 39,650.64 and 13,111.47

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Solution

The fourth proportional to 26,447.64, 39,650.64 and 13,111.47 is: 19,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,447.64 : 39,650.64 = 13,111.47 : x
  2. Step 2: Convert to fraction form
    26,447.64/39,650.64 = 13,111.47/x
  3. Step 3: Cross multiply
    26,447.64x = 39,650.64 × 13,111.47
  4. Step 4: Simplify right side
    26,447.64x = 519,878,176.84
  5. Step 5: Solve for x
    x = 519,878,176.84/26,447.64
  6. Step 6: Final answer
    x = 19,656.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.