Home / 38,570.40-57,859.85-12,269.00

Finding the Fourth Proportional to 38,570.40, 57,859.85 and 12,269.00

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Solution

The fourth proportional to 38,570.40, 57,859.85 and 12,269.00 is: 18,404.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,570.40 : 57,859.85 = 12,269.00 : x
  2. Step 2: Convert to fraction form
    38,570.40/57,859.85 = 12,269.00/x
  3. Step 3: Cross multiply
    38,570.40x = 57,859.85 × 12,269.00
  4. Step 4: Simplify right side
    38,570.40x = 709,882,674.97
  5. Step 5: Solve for x
    x = 709,882,674.97/38,570.40
  6. Step 6: Final answer
    x = 18,404.86

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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.