Home / 39,908.20-59,870.40-13,615.60

Finding the Fourth Proportional to 39,908.20, 59,870.40 and 13,615.60

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Solution

The fourth proportional to 39,908.20, 59,870.40 and 13,615.60 is: 20,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,908.20 : 59,870.40 = 13,615.60 : x
  2. Step 2: Convert to fraction form
    39,908.20/59,870.40 = 13,615.60/x
  3. Step 3: Cross multiply
    39,908.20x = 59,870.40 × 13,615.60
  4. Step 4: Simplify right side
    39,908.20x = 815,171,418.24
  5. Step 5: Solve for x
    x = 815,171,418.24/39,908.20
  6. Step 6: Final answer
    x = 20,426.16

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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.