Home / 29,921.32-41,272.50-21,406.60

Finding the Fourth Proportional to 29,921.32, 41,272.50 and 21,406.60

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Solution

The fourth proportional to 29,921.32, 41,272.50 and 21,406.60 is: 29,527.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,921.32 : 41,272.50 = 21,406.60 : x
  2. Step 2: Convert to fraction form
    29,921.32/41,272.50 = 21,406.60/x
  3. Step 3: Cross multiply
    29,921.32x = 41,272.50 × 21,406.60
  4. Step 4: Simplify right side
    29,921.32x = 883,503,898.50
  5. Step 5: Solve for x
    x = 883,503,898.50/29,921.32
  6. Step 6: Final answer
    x = 29,527.57

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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.