Home / 19,777.29-29,665.95-4,986.36

Finding the Fourth Proportional to 19,777.29, 29,665.95 and 4,986.36

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Solution

The fourth proportional to 19,777.29, 29,665.95 and 4,986.36 is: 7,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,777.29 : 29,665.95 = 4,986.36 : x
  2. Step 2: Convert to fraction form
    19,777.29/29,665.95 = 4,986.36/x
  3. Step 3: Cross multiply
    19,777.29x = 29,665.95 × 4,986.36
  4. Step 4: Simplify right side
    19,777.29x = 147,925,106.44
  5. Step 5: Solve for x
    x = 147,925,106.44/19,777.29
  6. Step 6: Final answer
    x = 7,479.54

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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.