Home / 21,654.12-32,421.26-11,101.40

Finding the Fourth Proportional to 21,654.12, 32,421.26 and 11,101.40

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Solution

The fourth proportional to 21,654.12, 32,421.26 and 11,101.40 is: 16,621.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,654.12 : 32,421.26 = 11,101.40 : x
  2. Step 2: Convert to fraction form
    21,654.12/32,421.26 = 11,101.40/x
  3. Step 3: Cross multiply
    21,654.12x = 32,421.26 × 11,101.40
  4. Step 4: Simplify right side
    21,654.12x = 359,921,375.76
  5. Step 5: Solve for x
    x = 359,921,375.76/21,654.12
  6. Step 6: Final answer
    x = 16,621.38

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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.