Home / 27,771.52-38,315.20-15,826.24

Finding the Fourth Proportional to 27,771.52, 38,315.20 and 15,826.24

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Solution

The fourth proportional to 27,771.52, 38,315.20 and 15,826.24 is: 21,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,771.52 : 38,315.20 = 15,826.24 : x
  2. Step 2: Convert to fraction form
    27,771.52/38,315.20 = 15,826.24/x
  3. Step 3: Cross multiply
    27,771.52x = 38,315.20 × 15,826.24
  4. Step 4: Simplify right side
    27,771.52x = 606,385,550.85
  5. Step 5: Solve for x
    x = 606,385,550.85/27,771.52
  6. Step 6: Final answer
    x = 21,834.80

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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.