Home / 21,407.42-32,090.04-12,511.46

Finding the Fourth Proportional to 21,407.42, 32,090.04 and 12,511.46

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Solution

The fourth proportional to 21,407.42, 32,090.04 and 12,511.46 is: 18,754.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.42 : 32,090.04 = 12,511.46 : x
  2. Step 2: Convert to fraction form
    21,407.42/32,090.04 = 12,511.46/x
  3. Step 3: Cross multiply
    21,407.42x = 32,090.04 × 12,511.46
  4. Step 4: Simplify right side
    21,407.42x = 401,493,251.86
  5. Step 5: Solve for x
    x = 401,493,251.86/21,407.42
  6. Step 6: Final answer
    x = 18,754.86

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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.