Home / 20,763.04-28,652.10-11,809.28

Finding the Fourth Proportional to 20,763.04, 28,652.10 and 11,809.28

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Solution

The fourth proportional to 20,763.04, 28,652.10 and 11,809.28 is: 16,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.04 : 28,652.10 = 11,809.28 : x
  2. Step 2: Convert to fraction form
    20,763.04/28,652.10 = 11,809.28/x
  3. Step 3: Cross multiply
    20,763.04x = 28,652.10 × 11,809.28
  4. Step 4: Simplify right side
    20,763.04x = 338,360,671.49
  5. Step 5: Solve for x
    x = 338,360,671.49/20,763.04
  6. Step 6: Final answer
    x = 16,296.30

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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.