Home / 21,391.52-32,090.04-8,247.64

Finding the Fourth Proportional to 21,391.52, 32,090.04 and 8,247.64

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Solution

The fourth proportional to 21,391.52, 32,090.04 and 8,247.64 is: 12,372.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391.52 : 32,090.04 = 8,247.64 : x
  2. Step 2: Convert to fraction form
    21,391.52/32,090.04 = 8,247.64/x
  3. Step 3: Cross multiply
    21,391.52x = 32,090.04 × 8,247.64
  4. Step 4: Simplify right side
    21,391.52x = 264,667,097.51
  5. Step 5: Solve for x
    x = 264,667,097.51/21,391.52
  6. Step 6: Final answer
    x = 12,372.52

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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.