Home / 21,905.48-32,836.08-12,542.24

Finding the Fourth Proportional to 21,905.48, 32,836.08 and 12,542.24

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Solution

The fourth proportional to 21,905.48, 32,836.08 and 12,542.24 is: 18,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.48 : 32,836.08 = 12,542.24 : x
  2. Step 2: Convert to fraction form
    21,905.48/32,836.08 = 12,542.24/x
  3. Step 3: Cross multiply
    21,905.48x = 32,836.08 × 12,542.24
  4. Step 4: Simplify right side
    21,905.48x = 411,837,996.02
  5. Step 5: Solve for x
    x = 411,837,996.02/21,905.48
  6. Step 6: Final answer
    x = 18,800.68

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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.