Home / 21,575.08-32,321.16-13,230.77

Finding the Fourth Proportional to 21,575.08, 32,321.16 and 13,230.77

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Solution

The fourth proportional to 21,575.08, 32,321.16 and 13,230.77 is: 19,820.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.08 : 32,321.16 = 13,230.77 : x
  2. Step 2: Convert to fraction form
    21,575.08/32,321.16 = 13,230.77/x
  3. Step 3: Cross multiply
    21,575.08x = 32,321.16 × 13,230.77
  4. Step 4: Simplify right side
    21,575.08x = 427,633,672.49
  5. Step 5: Solve for x
    x = 427,633,672.49/21,575.08
  6. Step 6: Final answer
    x = 19,820.72

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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.