Home / 20,734.50-28,613.66-11,303.04

Finding the Fourth Proportional to 20,734.50, 28,613.66 and 11,303.04

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Solution

The fourth proportional to 20,734.50, 28,613.66 and 11,303.04 is: 15,598.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.50 : 28,613.66 = 11,303.04 : x
  2. Step 2: Convert to fraction form
    20,734.50/28,613.66 = 11,303.04/x
  3. Step 3: Cross multiply
    20,734.50x = 28,613.66 × 11,303.04
  4. Step 4: Simplify right side
    20,734.50x = 323,421,287.01
  5. Step 5: Solve for x
    x = 323,421,287.01/20,734.50
  6. Step 6: Final answer
    x = 15,598.22

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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.