Home / 21,240.08-29,310.48-11,807.96

Finding the Fourth Proportional to 21,240.08, 29,310.48 and 11,807.96

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Solution

The fourth proportional to 21,240.08, 29,310.48 and 11,807.96 is: 16,294.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.08 : 29,310.48 = 11,807.96 : x
  2. Step 2: Convert to fraction form
    21,240.08/29,310.48 = 11,807.96/x
  3. Step 3: Cross multiply
    21,240.08x = 29,310.48 × 11,807.96
  4. Step 4: Simplify right side
    21,240.08x = 346,096,975.42
  5. Step 5: Solve for x
    x = 346,096,975.42/21,240.08
  6. Step 6: Final answer
    x = 16,294.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.