Home / 38,589.62-57,870.05-13,281.98

Finding the Fourth Proportional to 38,589.62, 57,870.05 and 13,281.98

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Solution

The fourth proportional to 38,589.62, 57,870.05 and 13,281.98 is: 19,918.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,589.62 : 57,870.05 = 13,281.98 : x
  2. Step 2: Convert to fraction form
    38,589.62/57,870.05 = 13,281.98/x
  3. Step 3: Cross multiply
    38,589.62x = 57,870.05 × 13,281.98
  4. Step 4: Simplify right side
    38,589.62x = 768,628,490.94
  5. Step 5: Solve for x
    x = 768,628,490.94/38,589.62
  6. Step 6: Final answer
    x = 19,918.01

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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.