Home / 38,944.40-58,418.68-12,647.22

Finding the Fourth Proportional to 38,944.40, 58,418.68 and 12,647.22

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Solution

The fourth proportional to 38,944.40, 58,418.68 and 12,647.22 is: 18,971.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,944.40 : 58,418.68 = 12,647.22 : x
  2. Step 2: Convert to fraction form
    38,944.40/58,418.68 = 12,647.22/x
  3. Step 3: Cross multiply
    38,944.40x = 58,418.68 × 12,647.22
  4. Step 4: Simplify right side
    38,944.40x = 738,833,898.07
  5. Step 5: Solve for x
    x = 738,833,898.07/38,944.40
  6. Step 6: Final answer
    x = 18,971.51

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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.