Home / 29,109.24-40,170.78-15,861.24

Finding the Fourth Proportional to 29,109.24, 40,170.78 and 15,861.24

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Solution

The fourth proportional to 29,109.24, 40,170.78 and 15,861.24 is: 21,888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,109.24 : 40,170.78 = 15,861.24 : x
  2. Step 2: Convert to fraction form
    29,109.24/40,170.78 = 15,861.24/x
  3. Step 3: Cross multiply
    29,109.24x = 40,170.78 × 15,861.24
  4. Step 4: Simplify right side
    29,109.24x = 637,158,382.57
  5. Step 5: Solve for x
    x = 637,158,382.57/29,109.24
  6. Step 6: Final answer
    x = 21,888.53

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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.