Home / 20,923.04-28,873.84-11,492.20

Finding the Fourth Proportional to 20,923.04, 28,873.84 and 11,492.20

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Solution

The fourth proportional to 20,923.04, 28,873.84 and 11,492.20 is: 15,859.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.04 : 28,873.84 = 11,492.20 : x
  2. Step 2: Convert to fraction form
    20,923.04/28,873.84 = 11,492.20/x
  3. Step 3: Cross multiply
    20,923.04x = 28,873.84 × 11,492.20
  4. Step 4: Simplify right side
    20,923.04x = 331,823,944.05
  5. Step 5: Solve for x
    x = 331,823,944.05/20,923.04
  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.