Home / 28,544.80-42,795.96-13,739.80

Finding the Fourth Proportional to 28,544.80, 42,795.96 and 13,739.80

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Solution

The fourth proportional to 28,544.80, 42,795.96 and 13,739.80 is: 20,599.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.80 : 42,795.96 = 13,739.80 : x
  2. Step 2: Convert to fraction form
    28,544.80/42,795.96 = 13,739.80/x
  3. Step 3: Cross multiply
    28,544.80x = 42,795.96 × 13,739.80
  4. Step 4: Simplify right side
    28,544.80x = 588,007,931.21
  5. Step 5: Solve for x
    x = 588,007,931.21/28,544.80
  6. Step 6: Final answer
    x = 20,599.48

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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.