Home / 20,980.02-28,949.04-12,025.88

Finding the Fourth Proportional to 20,980.02, 28,949.04 and 12,025.88

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Solution

The fourth proportional to 20,980.02, 28,949.04 and 12,025.88 is: 16,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980.02 : 28,949.04 = 12,025.88 : x
  2. Step 2: Convert to fraction form
    20,980.02/28,949.04 = 12,025.88/x
  3. Step 3: Cross multiply
    20,980.02x = 28,949.04 × 12,025.88
  4. Step 4: Simplify right side
    20,980.02x = 348,137,536.41
  5. Step 5: Solve for x
    x = 348,137,536.41/20,980.02
  6. Step 6: Final answer
    x = 16,593.77

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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.