Home / 39,089.98-58,622.82-12,788.88

Finding the Fourth Proportional to 39,089.98, 58,622.82 and 12,788.88

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Solution

The fourth proportional to 39,089.98, 58,622.82 and 12,788.88 is: 19,179.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,089.98 : 58,622.82 = 12,788.88 : x
  2. Step 2: Convert to fraction form
    39,089.98/58,622.82 = 12,788.88/x
  3. Step 3: Cross multiply
    39,089.98x = 58,622.82 × 12,788.88
  4. Step 4: Simplify right side
    39,089.98x = 749,719,917.13
  5. Step 5: Solve for x
    x = 749,719,917.13/39,089.98
  6. Step 6: Final answer
    x = 19,179.34

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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.