Home / 21,967.30-32,906.15-13,621.70

Finding the Fourth Proportional to 21,967.30, 32,906.15 and 13,621.70

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Solution

The fourth proportional to 21,967.30, 32,906.15 and 13,621.70 is: 20,404.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.30 : 32,906.15 = 13,621.70 : x
  2. Step 2: Convert to fraction form
    21,967.30/32,906.15 = 13,621.70/x
  3. Step 3: Cross multiply
    21,967.30x = 32,906.15 × 13,621.70
  4. Step 4: Simplify right side
    21,967.30x = 448,237,703.46
  5. Step 5: Solve for x
    x = 448,237,703.46/21,967.30
  6. Step 6: Final answer
    x = 20,404.77

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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.