Home / 20,483.73-30,726.18-11,128.23

Finding the Fourth Proportional to 20,483.73, 30,726.18 and 11,128.23

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Solution

The fourth proportional to 20,483.73, 30,726.18 and 11,128.23 is: 16,692.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.73 : 30,726.18 = 11,128.23 : x
  2. Step 2: Convert to fraction form
    20,483.73/30,726.18 = 11,128.23/x
  3. Step 3: Cross multiply
    20,483.73x = 30,726.18 × 11,128.23
  4. Step 4: Simplify right side
    20,483.73x = 341,927,998.06
  5. Step 5: Solve for x
    x = 341,927,998.06/20,483.73
  6. Step 6: Final answer
    x = 16,692.66

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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.