Home / 20,984.49-28,956.51-12,029.94

Finding the Fourth Proportional to 20,984.49, 28,956.51 and 12,029.94

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Solution

The fourth proportional to 20,984.49, 28,956.51 and 12,029.94 is: 16,600.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.49 : 28,956.51 = 12,029.94 : x
  2. Step 2: Convert to fraction form
    20,984.49/28,956.51 = 12,029.94/x
  3. Step 3: Cross multiply
    20,984.49x = 28,956.51 × 12,029.94
  4. Step 4: Simplify right side
    20,984.49x = 348,345,077.91
  5. Step 5: Solve for x
    x = 348,345,077.91/20,984.49
  6. Step 6: Final answer
    x = 16,600.12

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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.