Home / 20,295.50-28,007.80-12,336.24

Finding the Fourth Proportional to 20,295.50, 28,007.80 and 12,336.24

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Solution

The fourth proportional to 20,295.50, 28,007.80 and 12,336.24 is: 17,024.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.50 : 28,007.80 = 12,336.24 : x
  2. Step 2: Convert to fraction form
    20,295.50/28,007.80 = 12,336.24/x
  3. Step 3: Cross multiply
    20,295.50x = 28,007.80 × 12,336.24
  4. Step 4: Simplify right side
    20,295.50x = 345,510,942.67
  5. Step 5: Solve for x
    x = 345,510,942.67/20,295.50
  6. Step 6: Final answer
    x = 17,024.02

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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.