Home / 20,596.40-28,423.98-11,644.28

Finding the Fourth Proportional to 20,596.40, 28,423.98 and 11,644.28

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Solution

The fourth proportional to 20,596.40, 28,423.98 and 11,644.28 is: 16,069.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.40 : 28,423.98 = 11,644.28 : x
  2. Step 2: Convert to fraction form
    20,596.40/28,423.98 = 11,644.28/x
  3. Step 3: Cross multiply
    20,596.40x = 28,423.98 × 11,644.28
  4. Step 4: Simplify right side
    20,596.40x = 330,976,781.83
  5. Step 5: Solve for x
    x = 330,976,781.83/20,596.40
  6. Step 6: Final answer
    x = 16,069.64

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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.