Home / 20,762.02-28,651.98-11,809.72

Finding the Fourth Proportional to 20,762.02, 28,651.98 and 11,809.72

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Solution

The fourth proportional to 20,762.02, 28,651.98 and 11,809.72 is: 16,297.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.02 : 28,651.98 = 11,809.72 : x
  2. Step 2: Convert to fraction form
    20,762.02/28,651.98 = 11,809.72/x
  3. Step 3: Cross multiply
    20,762.02x = 28,651.98 × 11,809.72
  4. Step 4: Simplify right side
    20,762.02x = 338,371,861.25
  5. Step 5: Solve for x
    x = 338,371,861.25/20,762.02
  6. Step 6: Final answer
    x = 16,297.64

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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.