Home / 33,309.86-45,987.63-20,751.62

Finding the Fourth Proportional to 33,309.86, 45,987.63 and 20,751.62

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Solution

The fourth proportional to 33,309.86, 45,987.63 and 20,751.62 is: 28,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,309.86 : 45,987.63 = 20,751.62 : x
  2. Step 2: Convert to fraction form
    33,309.86/45,987.63 = 20,751.62/x
  3. Step 3: Cross multiply
    33,309.86x = 45,987.63 × 20,751.62
  4. Step 4: Simplify right side
    33,309.86x = 954,317,822.46
  5. Step 5: Solve for x
    x = 954,317,822.46/33,309.86
  6. Step 6: Final answer
    x = 28,649.71

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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.