Home / 39,082.05-58,628.54-12,781.55

Finding the Fourth Proportional to 39,082.05, 58,628.54 and 12,781.55

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Solution

The fourth proportional to 39,082.05, 58,628.54 and 12,781.55 is: 19,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,082.05 : 58,628.54 = 12,781.55 : x
  2. Step 2: Convert to fraction form
    39,082.05/58,628.54 = 12,781.55/x
  3. Step 3: Cross multiply
    39,082.05x = 58,628.54 × 12,781.55
  4. Step 4: Simplify right side
    39,082.05x = 749,363,615.44
  5. Step 5: Solve for x
    x = 749,363,615.44/39,082.05
  6. Step 6: Final answer
    x = 19,174.11

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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.