Home / 21,520.08-32,269.59-12,752.64

Finding the Fourth Proportional to 21,520.08, 32,269.59 and 12,752.64

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Solution

The fourth proportional to 21,520.08, 32,269.59 and 12,752.64 is: 19,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520.08 : 32,269.59 = 12,752.64 : x
  2. Step 2: Convert to fraction form
    21,520.08/32,269.59 = 12,752.64/x
  3. Step 3: Cross multiply
    21,520.08x = 32,269.59 × 12,752.64
  4. Step 4: Simplify right side
    21,520.08x = 411,522,464.22
  5. Step 5: Solve for x
    x = 411,522,464.22/21,520.08
  6. Step 6: Final answer
    x = 19,122.72

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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.