Home / 39,813.60-59,716.80-13,519.20

Finding the Fourth Proportional to 39,813.60, 59,716.80 and 13,519.20

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Solution

The fourth proportional to 39,813.60, 59,716.80 and 13,519.20 is: 20,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,813.60 : 59,716.80 = 13,519.20 : x
  2. Step 2: Convert to fraction form
    39,813.60/59,716.80 = 13,519.20/x
  3. Step 3: Cross multiply
    39,813.60x = 59,716.80 × 13,519.20
  4. Step 4: Simplify right side
    39,813.60x = 807,323,362.56
  5. Step 5: Solve for x
    x = 807,323,362.56/39,813.60
  6. Step 6: Final answer
    x = 20,277.58

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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.