Home / 20,483.16-28,259.32-11,982.62

Finding the Fourth Proportional to 20,483.16, 28,259.32 and 11,982.62

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Solution

The fourth proportional to 20,483.16, 28,259.32 and 11,982.62 is: 16,531.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.16 : 28,259.32 = 11,982.62 : x
  2. Step 2: Convert to fraction form
    20,483.16/28,259.32 = 11,982.62/x
  3. Step 3: Cross multiply
    20,483.16x = 28,259.32 × 11,982.62
  4. Step 4: Simplify right side
    20,483.16x = 338,620,693.02
  5. Step 5: Solve for x
    x = 338,620,693.02/20,483.16
  6. Step 6: Final answer
    x = 16,531.66

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1.5x scale

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.