Home / 20,323.08-28,049.10-11,939.52

Finding the Fourth Proportional to 20,323.08, 28,049.10 and 11,939.52

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Solution

The fourth proportional to 20,323.08, 28,049.10 and 11,939.52 is: 16,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.08 : 28,049.10 = 11,939.52 : x
  2. Step 2: Convert to fraction form
    20,323.08/28,049.10 = 11,939.52/x
  3. Step 3: Cross multiply
    20,323.08x = 28,049.10 × 11,939.52
  4. Step 4: Simplify right side
    20,323.08x = 334,892,790.43
  5. Step 5: Solve for x
    x = 334,892,790.43/20,323.08
  6. Step 6: Final answer
    x = 16,478.45

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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.