Home / 39,189.49-58,766.24-12,530.30

Finding the Fourth Proportional to 39,189.49, 58,766.24 and 12,530.30

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Solution

The fourth proportional to 39,189.49, 58,766.24 and 12,530.30 is: 18,789.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,189.49 : 58,766.24 = 12,530.30 : x
  2. Step 2: Convert to fraction form
    39,189.49/58,766.24 = 12,530.30/x
  3. Step 3: Cross multiply
    39,189.49x = 58,766.24 × 12,530.30
  4. Step 4: Simplify right side
    39,189.49x = 736,358,354.57
  5. Step 5: Solve for x
    x = 736,358,354.57/39,189.49
  6. Step 6: Final answer
    x = 18,789.69

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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.