Home / 19,341.13-28,991.84-11,003.40

Finding the Fourth Proportional to 19,341.13, 28,991.84 and 11,003.40

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Solution

The fourth proportional to 19,341.13, 28,991.84 and 11,003.40 is: 16,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,341.13 : 28,991.84 = 11,003.40 : x
  2. Step 2: Convert to fraction form
    19,341.13/28,991.84 = 11,003.40/x
  3. Step 3: Cross multiply
    19,341.13x = 28,991.84 × 11,003.40
  4. Step 4: Simplify right side
    19,341.13x = 319,008,667.30
  5. Step 5: Solve for x
    x = 319,008,667.30/19,341.13
  6. Step 6: Final answer
    x = 16,493.80

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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.