Home / 32,143.69-44,347.97-20,821.86

Finding the Fourth Proportional to 32,143.69, 44,347.97 and 20,821.86

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Solution

The fourth proportional to 32,143.69, 44,347.97 and 20,821.86 is: 28,727.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,143.69 : 44,347.97 = 20,821.86 : x
  2. Step 2: Convert to fraction form
    32,143.69/44,347.97 = 20,821.86/x
  3. Step 3: Cross multiply
    32,143.69x = 44,347.97 × 20,821.86
  4. Step 4: Simplify right side
    32,143.69x = 923,407,222.62
  5. Step 5: Solve for x
    x = 923,407,222.62/32,143.69
  6. Step 6: Final answer
    x = 28,727.48

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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.