Home / 21,488.45-32,232.65-8,161.42

Finding the Fourth Proportional to 21,488.45, 32,232.65 and 8,161.42

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Solution

The fourth proportional to 21,488.45, 32,232.65 and 8,161.42 is: 12,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.45 : 32,232.65 = 8,161.42 : x
  2. Step 2: Convert to fraction form
    21,488.45/32,232.65 = 8,161.42/x
  3. Step 3: Cross multiply
    21,488.45x = 32,232.65 × 8,161.42
  4. Step 4: Simplify right side
    21,488.45x = 263,064,239.75
  5. Step 5: Solve for x
    x = 263,064,239.75/21,488.45
  6. Step 6: Final answer
    x = 12,242.12

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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.