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Finding the Fourth Proportional to 21,963.93, 32,939.49 and 12,602.34

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Solution

The fourth proportional to 21,963.93, 32,939.49 and 12,602.34 is: 18,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.93 : 32,939.49 = 12,602.34 : x
  2. Step 2: Convert to fraction form
    21,963.93/32,939.49 = 12,602.34/x
  3. Step 3: Cross multiply
    21,963.93x = 32,939.49 × 12,602.34
  4. Step 4: Simplify right side
    21,963.93x = 415,114,652.41
  5. Step 5: Solve for x
    x = 415,114,652.41/21,963.93
  6. Step 6: Final answer
    x = 18,899.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.