Home / 21,962.40-32,943.60-13,651.80

Finding the Fourth Proportional to 21,962.40, 32,943.60 and 13,651.80

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Solution

The fourth proportional to 21,962.40, 32,943.60 and 13,651.80 is: 20,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,962.40 : 32,943.60 = 13,651.80 : x
  2. Step 2: Convert to fraction form
    21,962.40/32,943.60 = 13,651.80/x
  3. Step 3: Cross multiply
    21,962.40x = 32,943.60 × 13,651.80
  4. Step 4: Simplify right side
    21,962.40x = 449,739,438.48
  5. Step 5: Solve for x
    x = 449,739,438.48/21,962.40
  6. Step 6: Final answer
    x = 20,477.70

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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.