Home / 20,484.42-28,267.44-11,531.64

Finding the Fourth Proportional to 20,484.42, 28,267.44 and 11,531.64

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Solution

The fourth proportional to 20,484.42, 28,267.44 and 11,531.64 is: 15,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.42 : 28,267.44 = 11,531.64 : x
  2. Step 2: Convert to fraction form
    20,484.42/28,267.44 = 11,531.64/x
  3. Step 3: Cross multiply
    20,484.42x = 28,267.44 × 11,531.64
  4. Step 4: Simplify right side
    20,484.42x = 325,969,941.80
  5. Step 5: Solve for x
    x = 325,969,941.80/20,484.42
  6. Step 6: Final answer
    x = 15,913.07

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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.