Home / 31,575.76-43,582.03-18,154.80

Finding the Fourth Proportional to 31,575.76, 43,582.03 and 18,154.80

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Solution

The fourth proportional to 31,575.76, 43,582.03 and 18,154.80 is: 25,057.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,575.76 : 43,582.03 = 18,154.80 : x
  2. Step 2: Convert to fraction form
    31,575.76/43,582.03 = 18,154.80/x
  3. Step 3: Cross multiply
    31,575.76x = 43,582.03 × 18,154.80
  4. Step 4: Simplify right side
    31,575.76x = 791,222,992.86
  5. Step 5: Solve for x
    x = 791,222,992.86/31,575.76
  6. Step 6: Final answer
    x = 25,057.93

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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.