Home / 19,192.86-28,756.89-11,781.90

Finding the Fourth Proportional to 19,192.86, 28,756.89 and 11,781.90

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Solution

The fourth proportional to 19,192.86, 28,756.89 and 11,781.90 is: 17,652.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,192.86 : 28,756.89 = 11,781.90 : x
  2. Step 2: Convert to fraction form
    19,192.86/28,756.89 = 11,781.90/x
  3. Step 3: Cross multiply
    19,192.86x = 28,756.89 × 11,781.90
  4. Step 4: Simplify right side
    19,192.86x = 338,810,802.29
  5. Step 5: Solve for x
    x = 338,810,802.29/19,192.86
  6. Step 6: Final answer
    x = 17,652.96

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1.5x scale

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.