Home / 39,082.55-58,629.29-12,782.05

Finding the Fourth Proportional to 39,082.55, 58,629.29 and 12,782.05

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Solution

The fourth proportional to 39,082.55, 58,629.29 and 12,782.05 is: 19,174.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,082.55 : 58,629.29 = 12,782.05 : x
  2. Step 2: Convert to fraction form
    39,082.55/58,629.29 = 12,782.05/x
  3. Step 3: Cross multiply
    39,082.55x = 58,629.29 × 12,782.05
  4. Step 4: Simplify right side
    39,082.55x = 749,402,516.24
  5. Step 5: Solve for x
    x = 749,402,516.24/39,082.55
  6. Step 6: Final answer
    x = 19,174.86

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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.