Home / 31,920.86-44,044.08-18,491.31

Finding the Fourth Proportional to 31,920.86, 44,044.08 and 18,491.31

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Solution

The fourth proportional to 31,920.86, 44,044.08 and 18,491.31 is: 25,514.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,920.86 : 44,044.08 = 18,491.31 : x
  2. Step 2: Convert to fraction form
    31,920.86/44,044.08 = 18,491.31/x
  3. Step 3: Cross multiply
    31,920.86x = 44,044.08 × 18,491.31
  4. Step 4: Simplify right side
    31,920.86x = 814,432,736.94
  5. Step 5: Solve for x
    x = 814,432,736.94/31,920.86
  6. Step 6: Final answer
    x = 25,514.12

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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.