Home / 20,677.42-28,534.23-11,725.74

Finding the Fourth Proportional to 20,677.42, 28,534.23 and 11,725.74

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Solution

The fourth proportional to 20,677.42, 28,534.23 and 11,725.74 is: 16,181.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.42 : 28,534.23 = 11,725.74 : x
  2. Step 2: Convert to fraction form
    20,677.42/28,534.23 = 11,725.74/x
  3. Step 3: Cross multiply
    20,677.42x = 28,534.23 × 11,725.74
  4. Step 4: Simplify right side
    20,677.42x = 334,584,962.08
  5. Step 5: Solve for x
    x = 334,584,962.08/20,677.42
  6. Step 6: Final answer
    x = 16,181.18

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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.