Home / 20,684.04-28,545.08-11,734.42

Finding the Fourth Proportional to 20,684.04, 28,545.08 and 11,734.42

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Solution

The fourth proportional to 20,684.04, 28,545.08 and 11,734.42 is: 16,194.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684.04 : 28,545.08 = 11,734.42 : x
  2. Step 2: Convert to fraction form
    20,684.04/28,545.08 = 11,734.42/x
  3. Step 3: Cross multiply
    20,684.04x = 28,545.08 × 11,734.42
  4. Step 4: Simplify right side
    20,684.04x = 334,959,756.26
  5. Step 5: Solve for x
    x = 334,959,756.26/20,684.04
  6. Step 6: Final answer
    x = 16,194.12

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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.