Home / 40,986.02-61,428.27-19,908.82

Finding the Fourth Proportional to 40,986.02, 61,428.27 and 19,908.82

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Solution

The fourth proportional to 40,986.02, 61,428.27 and 19,908.82 is: 29,838.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,986.02 : 61,428.27 = 19,908.82 : x
  2. Step 2: Convert to fraction form
    40,986.02/61,428.27 = 19,908.82/x
  3. Step 3: Cross multiply
    40,986.02x = 61,428.27 × 19,908.82
  4. Step 4: Simplify right side
    40,986.02x = 1,222,964,370.34
  5. Step 5: Solve for x
    x = 1,222,964,370.34/40,986.02
  6. Step 6: Final answer
    x = 29,838.57

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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.