Home / 20,777.02-28,674.74-11,702.68

Finding the Fourth Proportional to 20,777.02, 28,674.74 and 11,702.68

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Solution

The fourth proportional to 20,777.02, 28,674.74 and 11,702.68 is: 16,151.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777.02 : 28,674.74 = 11,702.68 : x
  2. Step 2: Convert to fraction form
    20,777.02/28,674.74 = 11,702.68/x
  3. Step 3: Cross multiply
    20,777.02x = 28,674.74 × 11,702.68
  4. Step 4: Simplify right side
    20,777.02x = 335,571,162.93
  5. Step 5: Solve for x
    x = 335,571,162.93/20,777.02
  6. Step 6: Final answer
    x = 16,151.08

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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.