Home / 38,682.78-58,024.99-12,387.45

Finding the Fourth Proportional to 38,682.78, 58,024.99 and 12,387.45

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Solution

The fourth proportional to 38,682.78, 58,024.99 and 12,387.45 is: 18,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,682.78 : 58,024.99 = 12,387.45 : x
  2. Step 2: Convert to fraction form
    38,682.78/58,024.99 = 12,387.45/x
  3. Step 3: Cross multiply
    38,682.78x = 58,024.99 × 12,387.45
  4. Step 4: Simplify right side
    38,682.78x = 718,781,310.31
  5. Step 5: Solve for x
    x = 718,781,310.31/38,682.78
  6. Step 6: Final answer
    x = 18,581.43

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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.