Home / 39,870.27-59,806.82-13,571.60

Finding the Fourth Proportional to 39,870.27, 59,806.82 and 13,571.60

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Solution

The fourth proportional to 39,870.27, 59,806.82 and 13,571.60 is: 20,357.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,870.27 : 59,806.82 = 13,571.60 : x
  2. Step 2: Convert to fraction form
    39,870.27/59,806.82 = 13,571.60/x
  3. Step 3: Cross multiply
    39,870.27x = 59,806.82 × 13,571.60
  4. Step 4: Simplify right side
    39,870.27x = 811,673,973.21
  5. Step 5: Solve for x
    x = 811,673,973.21/39,870.27
  6. Step 6: Final answer
    x = 20,357.88

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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.