Home / 21,589.27-29,793.26-12,516.40

Finding the Fourth Proportional to 21,589.27, 29,793.26 and 12,516.40

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Solution

The fourth proportional to 21,589.27, 29,793.26 and 12,516.40 is: 17,272.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,589.27 : 29,793.26 = 12,516.40 : x
  2. Step 2: Convert to fraction form
    21,589.27/29,793.26 = 12,516.40/x
  3. Step 3: Cross multiply
    21,589.27x = 29,793.26 × 12,516.40
  4. Step 4: Simplify right side
    21,589.27x = 372,904,359.46
  5. Step 5: Solve for x
    x = 372,904,359.46/21,589.27
  6. Step 6: Final answer
    x = 17,272.67

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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.