Home / 20,012.50-27,618.87-11,630.62

Finding the Fourth Proportional to 20,012.50, 27,618.87 and 11,630.62

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Solution

The fourth proportional to 20,012.50, 27,618.87 and 11,630.62 is: 16,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.50 : 27,618.87 = 11,630.62 : x
  2. Step 2: Convert to fraction form
    20,012.50/27,618.87 = 11,630.62/x
  3. Step 3: Cross multiply
    20,012.50x = 27,618.87 × 11,630.62
  4. Step 4: Simplify right side
    20,012.50x = 321,224,581.80
  5. Step 5: Solve for x
    x = 321,224,581.80/20,012.50
  6. Step 6: Final answer
    x = 16,051.20

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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.