Home / 20,573.20-28,389.92-11,496.94

Finding the Fourth Proportional to 20,573.20, 28,389.92 and 11,496.94

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Solution

The fourth proportional to 20,573.20, 28,389.92 and 11,496.94 is: 15,865.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.20 : 28,389.92 = 11,496.94 : x
  2. Step 2: Convert to fraction form
    20,573.20/28,389.92 = 11,496.94/x
  3. Step 3: Cross multiply
    20,573.20x = 28,389.92 × 11,496.94
  4. Step 4: Simplify right side
    20,573.20x = 326,397,206.84
  5. Step 5: Solve for x
    x = 326,397,206.84/20,573.20
  6. Step 6: Final answer
    x = 15,865.16

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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.