Home / 20,923.03-28,873.83-11,492.20

Finding the Fourth Proportional to 20,923.03, 28,873.83 and 11,492.20

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Solution

The fourth proportional to 20,923.03, 28,873.83 and 11,492.20 is: 15,859.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.03 : 28,873.83 = 11,492.20 : x
  2. Step 2: Convert to fraction form
    20,923.03/28,873.83 = 11,492.20/x
  3. Step 3: Cross multiply
    20,923.03x = 28,873.83 × 11,492.20
  4. Step 4: Simplify right side
    20,923.03x = 331,823,829.13
  5. Step 5: Solve for x
    x = 331,823,829.13/20,923.03
  6. Step 6: Final answer
    x = 15,859.26

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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.