Home / 26,419.18-36,397.20-18,448.78

Finding the Fourth Proportional to 26,419.18, 36,397.20 and 18,448.78

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Solution

The fourth proportional to 26,419.18, 36,397.20 and 18,448.78 is: 25,416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,419.18 : 36,397.20 = 18,448.78 : x
  2. Step 2: Convert to fraction form
    26,419.18/36,397.20 = 18,448.78/x
  3. Step 3: Cross multiply
    26,419.18x = 36,397.20 × 18,448.78
  4. Step 4: Simplify right side
    26,419.18x = 671,483,935.42
  5. Step 5: Solve for x
    x = 671,483,935.42/26,419.18
  6. Step 6: Final answer
    x = 25,416.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.