Home / 20,582.25-28,398.60-13,015.23

Finding the Fourth Proportional to 20,582.25, 28,398.60 and 13,015.23

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Solution

The fourth proportional to 20,582.25, 28,398.60 and 13,015.23 is: 17,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.25 : 28,398.60 = 13,015.23 : x
  2. Step 2: Convert to fraction form
    20,582.25/28,398.60 = 13,015.23/x
  3. Step 3: Cross multiply
    20,582.25x = 28,398.60 × 13,015.23
  4. Step 4: Simplify right side
    20,582.25x = 369,614,310.68
  5. Step 5: Solve for x
    x = 369,614,310.68/20,582.25
  6. Step 6: Final answer
    x = 17,957.92

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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.