Home / 21,095.56-29,112.24-12,145.96

Finding the Fourth Proportional to 21,095.56, 29,112.24 and 12,145.96

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Solution

The fourth proportional to 21,095.56, 29,112.24 and 12,145.96 is: 16,761.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.56 : 29,112.24 = 12,145.96 : x
  2. Step 2: Convert to fraction form
    21,095.56/29,112.24 = 12,145.96/x
  3. Step 3: Cross multiply
    21,095.56x = 29,112.24 × 12,145.96
  4. Step 4: Simplify right side
    21,095.56x = 353,596,102.55
  5. Step 5: Solve for x
    x = 353,596,102.55/21,095.56
  6. Step 6: Final answer
    x = 16,761.64

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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.