Home / 21,152.96-29,191.52-11,722.24

Finding the Fourth Proportional to 21,152.96, 29,191.52 and 11,722.24

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Solution

The fourth proportional to 21,152.96, 29,191.52 and 11,722.24 is: 16,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.96 : 29,191.52 = 11,722.24 : x
  2. Step 2: Convert to fraction form
    21,152.96/29,191.52 = 11,722.24/x
  3. Step 3: Cross multiply
    21,152.96x = 29,191.52 × 11,722.24
  4. Step 4: Simplify right side
    21,152.96x = 342,190,003.40
  5. Step 5: Solve for x
    x = 342,190,003.40/21,152.96
  6. Step 6: Final answer
    x = 16,176.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.