Home / 25,145.10-37,845.29-18,936.45

Finding the Fourth Proportional to 25,145.10, 37,845.29 and 18,936.45

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Solution

The fourth proportional to 25,145.10, 37,845.29 and 18,936.45 is: 28,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,145.10 : 37,845.29 = 18,936.45 : x
  2. Step 2: Convert to fraction form
    25,145.10/37,845.29 = 18,936.45/x
  3. Step 3: Cross multiply
    25,145.10x = 37,845.29 × 18,936.45
  4. Step 4: Simplify right side
    25,145.10x = 716,655,489.16
  5. Step 5: Solve for x
    x = 716,655,489.16/25,145.10
  6. Step 6: Final answer
    x = 28,500.80

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.