Home / 21,490.08-32,205.64-16,220.60

Finding the Fourth Proportional to 21,490.08, 32,205.64 and 16,220.60

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Solution

The fourth proportional to 21,490.08, 32,205.64 and 16,220.60 is: 24,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490.08 : 32,205.64 = 16,220.60 : x
  2. Step 2: Convert to fraction form
    21,490.08/32,205.64 = 16,220.60/x
  3. Step 3: Cross multiply
    21,490.08x = 32,205.64 × 16,220.60
  4. Step 4: Simplify right side
    21,490.08x = 522,394,804.18
  5. Step 5: Solve for x
    x = 522,394,804.18/21,490.08
  6. Step 6: Final answer
    x = 24,308.65

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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.