Home / 20,739.83-28,623.02-12,244.76

Finding the Fourth Proportional to 20,739.83, 28,623.02 and 12,244.76

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Solution

The fourth proportional to 20,739.83, 28,623.02 and 12,244.76 is: 16,898.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.83 : 28,623.02 = 12,244.76 : x
  2. Step 2: Convert to fraction form
    20,739.83/28,623.02 = 12,244.76/x
  3. Step 3: Cross multiply
    20,739.83x = 28,623.02 × 12,244.76
  4. Step 4: Simplify right side
    20,739.83x = 350,481,867.26
  5. Step 5: Solve for x
    x = 350,481,867.26/20,739.83
  6. Step 6: Final answer
    x = 16,898.97

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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.