Home / 39,045.88-58,579.68-12,752.20

Finding the Fourth Proportional to 39,045.88, 58,579.68 and 12,752.20

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Solution

The fourth proportional to 39,045.88, 58,579.68 and 12,752.20 is: 19,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,045.88 : 58,579.68 = 12,752.20 : x
  2. Step 2: Convert to fraction form
    39,045.88/58,579.68 = 12,752.20/x
  3. Step 3: Cross multiply
    39,045.88x = 58,579.68 × 12,752.20
  4. Step 4: Simplify right side
    39,045.88x = 747,019,795.30
  5. Step 5: Solve for x
    x = 747,019,795.30/39,045.88
  6. Step 6: Final answer
    x = 19,131.85

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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.