Home / 19,871.49-29,807.13-5,080.38

Finding the Fourth Proportional to 19,871.49, 29,807.13 and 5,080.38

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Solution

The fourth proportional to 19,871.49, 29,807.13 and 5,080.38 is: 7,620.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.49 : 29,807.13 = 5,080.38 : x
  2. Step 2: Convert to fraction form
    19,871.49/29,807.13 = 5,080.38/x
  3. Step 3: Cross multiply
    19,871.49x = 29,807.13 × 5,080.38
  4. Step 4: Simplify right side
    19,871.49x = 151,431,547.11
  5. Step 5: Solve for x
    x = 151,431,547.11/19,871.49
  6. Step 6: Final answer
    x = 7,620.54

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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.