Home / 39,173.76-58,748.22-12,872.40

Finding the Fourth Proportional to 39,173.76, 58,748.22 and 12,872.40

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Solution

The fourth proportional to 39,173.76, 58,748.22 and 12,872.40 is: 19,304.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,173.76 : 58,748.22 = 12,872.40 : x
  2. Step 2: Convert to fraction form
    39,173.76/58,748.22 = 12,872.40/x
  3. Step 3: Cross multiply
    39,173.76x = 58,748.22 × 12,872.40
  4. Step 4: Simplify right side
    39,173.76x = 756,230,587.13
  5. Step 5: Solve for x
    x = 756,230,587.13/39,173.76
  6. Step 6: Final answer
    x = 19,304.52

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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.