Home / 20,984.61-28,959.68-12,032.97

Finding the Fourth Proportional to 20,984.61, 28,959.68 and 12,032.97

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Solution

The fourth proportional to 20,984.61, 28,959.68 and 12,032.97 is: 16,606.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.61 : 28,959.68 = 12,032.97 : x
  2. Step 2: Convert to fraction form
    20,984.61/28,959.68 = 12,032.97/x
  3. Step 3: Cross multiply
    20,984.61x = 28,959.68 × 12,032.97
  4. Step 4: Simplify right side
    20,984.61x = 348,470,960.65
  5. Step 5: Solve for x
    x = 348,470,960.65/20,984.61
  6. Step 6: Final answer
    x = 16,606.03

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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.