Home / 28,290.25-39,032.44-18,224.52

Finding the Fourth Proportional to 28,290.25, 39,032.44 and 18,224.52

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Solution

The fourth proportional to 28,290.25, 39,032.44 and 18,224.52 is: 25,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.25 : 39,032.44 = 18,224.52 : x
  2. Step 2: Convert to fraction form
    28,290.25/39,032.44 = 18,224.52/x
  3. Step 3: Cross multiply
    28,290.25x = 39,032.44 × 18,224.52
  4. Step 4: Simplify right side
    28,290.25x = 711,347,483.43
  5. Step 5: Solve for x
    x = 711,347,483.43/28,290.25
  6. Step 6: Final answer
    x = 25,144.62

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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.