Home / 21,485.77-32,230.20-8,993.22

Finding the Fourth Proportional to 21,485.77, 32,230.20 and 8,993.22

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Solution

The fourth proportional to 21,485.77, 32,230.20 and 8,993.22 is: 13,490.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.77 : 32,230.20 = 8,993.22 : x
  2. Step 2: Convert to fraction form
    21,485.77/32,230.20 = 8,993.22/x
  3. Step 3: Cross multiply
    21,485.77x = 32,230.20 × 8,993.22
  4. Step 4: Simplify right side
    21,485.77x = 289,853,279.24
  5. Step 5: Solve for x
    x = 289,853,279.24/21,485.77
  6. Step 6: Final answer
    x = 13,490.48

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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.