Home / 39,388.32-59,069.70-13,086

Finding the Fourth Proportional to 39,388.32, 59,069.70 and 13,086

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Solution

The fourth proportional to 39,388.32, 59,069.70 and 13,086 is: 19,624.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,388.32 : 59,069.70 = 13,086 : x
  2. Step 2: Convert to fraction form
    39,388.32/59,069.70 = 13,086/x
  3. Step 3: Cross multiply
    39,388.32x = 59,069.70 × 13,086
  4. Step 4: Simplify right side
    39,388.32x = 772,986,094.20
  5. Step 5: Solve for x
    x = 772,986,094.20/39,388.32
  6. Step 6: Final answer
    x = 19,624.75

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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.