Home / 28,066.86-38,744.87-18,512.37

Finding the Fourth Proportional to 28,066.86, 38,744.87 and 18,512.37

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Solution

The fourth proportional to 28,066.86, 38,744.87 and 18,512.37 is: 25,555.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.86 : 38,744.87 = 18,512.37 : x
  2. Step 2: Convert to fraction form
    28,066.86/38,744.87 = 18,512.37/x
  3. Step 3: Cross multiply
    28,066.86x = 38,744.87 × 18,512.37
  4. Step 4: Simplify right side
    28,066.86x = 717,259,276.48
  5. Step 5: Solve for x
    x = 717,259,276.48/28,066.86
  6. Step 6: Final answer
    x = 25,555.38

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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.