Home / 20,889.02-28,827.42-11,937.98

Finding the Fourth Proportional to 20,889.02, 28,827.42 and 11,937.98

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Solution

The fourth proportional to 20,889.02, 28,827.42 and 11,937.98 is: 16,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,889.02 : 28,827.42 = 11,937.98 : x
  2. Step 2: Convert to fraction form
    20,889.02/28,827.42 = 11,937.98/x
  3. Step 3: Cross multiply
    20,889.02x = 28,827.42 × 11,937.98
  4. Step 4: Simplify right side
    20,889.02x = 344,141,163.41
  5. Step 5: Solve for x
    x = 344,141,163.41/20,889.02
  6. Step 6: Final answer
    x = 16,474.74

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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.