Home / 19,519.86-29,285.28-7,841.28

Finding the Fourth Proportional to 19,519.86, 29,285.28 and 7,841.28

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Solution

The fourth proportional to 19,519.86, 29,285.28 and 7,841.28 is: 11,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.86 : 29,285.28 = 7,841.28 : x
  2. Step 2: Convert to fraction form
    19,519.86/29,285.28 = 7,841.28/x
  3. Step 3: Cross multiply
    19,519.86x = 29,285.28 × 7,841.28
  4. Step 4: Simplify right side
    19,519.86x = 229,634,080.36
  5. Step 5: Solve for x
    x = 229,634,080.36/19,519.86
  6. Step 6: Final answer
    x = 11,764.13

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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.