Home / 21,339.08-32,013.36-8,191.46

Finding the Fourth Proportional to 21,339.08, 32,013.36 and 8,191.46

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Solution

The fourth proportional to 21,339.08, 32,013.36 and 8,191.46 is: 12,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339.08 : 32,013.36 = 8,191.46 : x
  2. Step 2: Convert to fraction form
    21,339.08/32,013.36 = 8,191.46/x
  3. Step 3: Cross multiply
    21,339.08x = 32,013.36 × 8,191.46
  4. Step 4: Simplify right side
    21,339.08x = 262,236,157.91
  5. Step 5: Solve for x
    x = 262,236,157.91/21,339.08
  6. Step 6: Final answer
    x = 12,289.01

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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.