Home / 28,550.36-39,398.40-15,975.12

Finding the Fourth Proportional to 28,550.36, 39,398.40 and 15,975.12

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Solution

The fourth proportional to 28,550.36, 39,398.40 and 15,975.12 is: 22,045.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550.36 : 39,398.40 = 15,975.12 : x
  2. Step 2: Convert to fraction form
    28,550.36/39,398.40 = 15,975.12/x
  3. Step 3: Cross multiply
    28,550.36x = 39,398.40 × 15,975.12
  4. Step 4: Simplify right side
    28,550.36x = 629,394,167.81
  5. Step 5: Solve for x
    x = 629,394,167.81/28,550.36
  6. Step 6: Final answer
    x = 22,045.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.