Home / 21,939.84-32,862.54-12,553.50

Finding the Fourth Proportional to 21,939.84, 32,862.54 and 12,553.50

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Solution

The fourth proportional to 21,939.84, 32,862.54 and 12,553.50 is: 18,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,939.84 : 32,862.54 = 12,553.50 : x
  2. Step 2: Convert to fraction form
    21,939.84/32,862.54 = 12,553.50/x
  3. Step 3: Cross multiply
    21,939.84x = 32,862.54 × 12,553.50
  4. Step 4: Simplify right side
    21,939.84x = 412,539,895.89
  5. Step 5: Solve for x
    x = 412,539,895.89/21,939.84
  6. Step 6: Final answer
    x = 18,803.23

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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.