Home / 20,923.32-28,874.68-11,492.08

Finding the Fourth Proportional to 20,923.32, 28,874.68 and 11,492.08

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Solution

The fourth proportional to 20,923.32, 28,874.68 and 11,492.08 is: 15,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.32 : 28,874.68 = 11,492.08 : x
  2. Step 2: Convert to fraction form
    20,923.32/28,874.68 = 11,492.08/x
  3. Step 3: Cross multiply
    20,923.32x = 28,874.68 × 11,492.08
  4. Step 4: Simplify right side
    20,923.32x = 331,830,132.53
  5. Step 5: Solve for x
    x = 331,830,132.53/20,923.32
  6. Step 6: Final answer
    x = 15,859.34

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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.