Home / 19,863.36-29,760.64-12,055.80

Finding the Fourth Proportional to 19,863.36, 29,760.64 and 12,055.80

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Solution

The fourth proportional to 19,863.36, 29,760.64 and 12,055.80 is: 18,062.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.36 : 29,760.64 = 12,055.80 : x
  2. Step 2: Convert to fraction form
    19,863.36/29,760.64 = 12,055.80/x
  3. Step 3: Cross multiply
    19,863.36x = 29,760.64 × 12,055.80
  4. Step 4: Simplify right side
    19,863.36x = 358,788,323.71
  5. Step 5: Solve for x
    x = 358,788,323.71/19,863.36
  6. Step 6: Final answer
    x = 18,062.82

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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.