Home / 21,749.24-32,631.60-13,419.56

Finding the Fourth Proportional to 21,749.24, 32,631.60 and 13,419.56

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Solution

The fourth proportional to 21,749.24, 32,631.60 and 13,419.56 is: 20,134.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749.24 : 32,631.60 = 13,419.56 : x
  2. Step 2: Convert to fraction form
    21,749.24/32,631.60 = 13,419.56/x
  3. Step 3: Cross multiply
    21,749.24x = 32,631.60 × 13,419.56
  4. Step 4: Simplify right side
    21,749.24x = 437,901,714.10
  5. Step 5: Solve for x
    x = 437,901,714.10/21,749.24
  6. Step 6: Final answer
    x = 20,134.12

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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.