Home / 20,924.32-28,874.90-11,492.28

Finding the Fourth Proportional to 20,924.32, 28,874.90 and 11,492.28

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Solution

The fourth proportional to 20,924.32, 28,874.90 and 11,492.28 is: 15,858.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.32 : 28,874.90 = 11,492.28 : x
  2. Step 2: Convert to fraction form
    20,924.32/28,874.90 = 11,492.28/x
  3. Step 3: Cross multiply
    20,924.32x = 28,874.90 × 11,492.28
  4. Step 4: Simplify right side
    20,924.32x = 331,838,435.77
  5. Step 5: Solve for x
    x = 331,838,435.77/20,924.32
  6. Step 6: Final answer
    x = 15,858.98

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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.