Home / 38,953.87-58,436.42-12,290.80

Finding the Fourth Proportional to 38,953.87, 58,436.42 and 12,290.80

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Solution

The fourth proportional to 38,953.87, 58,436.42 and 12,290.80 is: 18,437.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,953.87 : 58,436.42 = 12,290.80 : x
  2. Step 2: Convert to fraction form
    38,953.87/58,436.42 = 12,290.80/x
  3. Step 3: Cross multiply
    38,953.87x = 58,436.42 × 12,290.80
  4. Step 4: Simplify right side
    38,953.87x = 718,230,350.94
  5. Step 5: Solve for x
    x = 718,230,350.94/38,953.87
  6. Step 6: Final answer
    x = 18,437.97

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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.