Home / 20,750.70-28,636.26-11,798.18

Finding the Fourth Proportional to 20,750.70, 28,636.26 and 11,798.18

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Solution

The fourth proportional to 20,750.70, 28,636.26 and 11,798.18 is: 16,281.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.70 : 28,636.26 = 11,798.18 : x
  2. Step 2: Convert to fraction form
    20,750.70/28,636.26 = 11,798.18/x
  3. Step 3: Cross multiply
    20,750.70x = 28,636.26 × 11,798.18
  4. Step 4: Simplify right side
    20,750.70x = 337,855,783.69
  5. Step 5: Solve for x
    x = 337,855,783.69/20,750.70
  6. Step 6: Final answer
    x = 16,281.66

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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.