Home / 39,723-54,819.18-22,730.28

Finding the Fourth Proportional to 39,723, 54,819.18 and 22,730.28

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Solution

The fourth proportional to 39,723, 54,819.18 and 22,730.28 is: 31,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,723 : 54,819.18 = 22,730.28 : x
  2. Step 2: Convert to fraction form
    39,723/54,819.18 = 22,730.28/x
  3. Step 3: Cross multiply
    39,723x = 54,819.18 × 22,730.28
  4. Step 4: Simplify right side
    39,723x = 1,246,055,310.77
  5. Step 5: Solve for x
    x = 1,246,055,310.77/39,723
  6. Step 6: Final answer
    x = 31,368.61

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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.