Home / 19,128.94-28,666.98-10,699.88

Finding the Fourth Proportional to 19,128.94, 28,666.98 and 10,699.88

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Solution

The fourth proportional to 19,128.94, 28,666.98 and 10,699.88 is: 16,035.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.94 : 28,666.98 = 10,699.88 : x
  2. Step 2: Convert to fraction form
    19,128.94/28,666.98 = 10,699.88/x
  3. Step 3: Cross multiply
    19,128.94x = 28,666.98 × 10,699.88
  4. Step 4: Simplify right side
    19,128.94x = 306,733,102.63
  5. Step 5: Solve for x
    x = 306,733,102.63/19,128.94
  6. Step 6: Final answer
    x = 16,035.03

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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.