Home / 31,919.86-44,057.16-18,488.94

Finding the Fourth Proportional to 31,919.86, 44,057.16 and 18,488.94

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Solution

The fourth proportional to 31,919.86, 44,057.16 and 18,488.94 is: 25,519.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,919.86 : 44,057.16 = 18,488.94 : x
  2. Step 2: Convert to fraction form
    31,919.86/44,057.16 = 18,488.94/x
  3. Step 3: Cross multiply
    31,919.86x = 44,057.16 × 18,488.94
  4. Step 4: Simplify right side
    31,919.86x = 814,570,187.81
  5. Step 5: Solve for x
    x = 814,570,187.81/31,919.86
  6. Step 6: Final answer
    x = 25,519.23

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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.