Home / 20,667.08-28,522-11,714.64

Finding the Fourth Proportional to 20,667.08, 28,522 and 11,714.64

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Solution

The fourth proportional to 20,667.08, 28,522 and 11,714.64 is: 16,167.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.08 : 28,522 = 11,714.64 : x
  2. Step 2: Convert to fraction form
    20,667.08/28,522 = 11,714.64/x
  3. Step 3: Cross multiply
    20,667.08x = 28,522 × 11,714.64
  4. Step 4: Simplify right side
    20,667.08x = 334,124,962.08
  5. Step 5: Solve for x
    x = 334,124,962.08/20,667.08
  6. Step 6: Final answer
    x = 16,167.01

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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.