Home / 20,822.04-28,733.80-11,389.98

Finding the Fourth Proportional to 20,822.04, 28,733.80 and 11,389.98

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Solution

The fourth proportional to 20,822.04, 28,733.80 and 11,389.98 is: 15,717.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822.04 : 28,733.80 = 11,389.98 : x
  2. Step 2: Convert to fraction form
    20,822.04/28,733.80 = 11,389.98/x
  3. Step 3: Cross multiply
    20,822.04x = 28,733.80 × 11,389.98
  4. Step 4: Simplify right side
    20,822.04x = 327,277,407.32
  5. Step 5: Solve for x
    x = 327,277,407.32/20,822.04
  6. Step 6: Final answer
    x = 15,717.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.