Home / 21,520.64-32,281.28-5,725.96

Finding the Fourth Proportional to 21,520.64, 32,281.28 and 5,725.96

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Solution

The fourth proportional to 21,520.64, 32,281.28 and 5,725.96 is: 8,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520.64 : 32,281.28 = 5,725.96 : x
  2. Step 2: Convert to fraction form
    21,520.64/32,281.28 = 5,725.96/x
  3. Step 3: Cross multiply
    21,520.64x = 32,281.28 × 5,725.96
  4. Step 4: Simplify right side
    21,520.64x = 184,841,318.03
  5. Step 5: Solve for x
    x = 184,841,318.03/21,520.64
  6. Step 6: Final answer
    x = 8,589.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.