Home / 20,980.36-28,949.52-12,026.08

Finding the Fourth Proportional to 20,980.36, 28,949.52 and 12,026.08

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Solution

The fourth proportional to 20,980.36, 28,949.52 and 12,026.08 is: 16,594.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980.36 : 28,949.52 = 12,026.08 : x
  2. Step 2: Convert to fraction form
    20,980.36/28,949.52 = 12,026.08/x
  3. Step 3: Cross multiply
    20,980.36x = 28,949.52 × 12,026.08
  4. Step 4: Simplify right side
    20,980.36x = 348,149,243.48
  5. Step 5: Solve for x
    x = 348,149,243.48/20,980.36
  6. Step 6: Final answer
    x = 16,594.05

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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.