Home / 21,963.40-32,945.10-13,193.80

Finding the Fourth Proportional to 21,963.40, 32,945.10 and 13,193.80

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Solution

The fourth proportional to 21,963.40, 32,945.10 and 13,193.80 is: 19,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.40 : 32,945.10 = 13,193.80 : x
  2. Step 2: Convert to fraction form
    21,963.40/32,945.10 = 13,193.80/x
  3. Step 3: Cross multiply
    21,963.40x = 32,945.10 × 13,193.80
  4. Step 4: Simplify right side
    21,963.40x = 434,671,060.38
  5. Step 5: Solve for x
    x = 434,671,060.38/21,963.40
  6. Step 6: Final answer
    x = 19,790.70

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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.