Home / 20,416.50-28,154.04-19,225.98

Finding the Fourth Proportional to 20,416.50, 28,154.04 and 19,225.98

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Solution

The fourth proportional to 20,416.50, 28,154.04 and 19,225.98 is: 26,512.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.50 : 28,154.04 = 19,225.98 : x
  2. Step 2: Convert to fraction form
    20,416.50/28,154.04 = 19,225.98/x
  3. Step 3: Cross multiply
    20,416.50x = 28,154.04 × 19,225.98
  4. Step 4: Simplify right side
    20,416.50x = 541,289,009.96
  5. Step 5: Solve for x
    x = 541,289,009.96/20,416.50
  6. Step 6: Final answer
    x = 26,512.33

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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.