Home / 20,898.89-28,842.04-11,946.77

Finding the Fourth Proportional to 20,898.89, 28,842.04 and 11,946.77

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Solution

The fourth proportional to 20,898.89, 28,842.04 and 11,946.77 is: 16,487.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.89 : 28,842.04 = 11,946.77 : x
  2. Step 2: Convert to fraction form
    20,898.89/28,842.04 = 11,946.77/x
  3. Step 3: Cross multiply
    20,898.89x = 28,842.04 × 11,946.77
  4. Step 4: Simplify right side
    20,898.89x = 344,569,218.21
  5. Step 5: Solve for x
    x = 344,569,218.21/20,898.89
  6. Step 6: Final answer
    x = 16,487.44

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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.