Home / 28,536.75-42,819.84-12,746.61

Finding the Fourth Proportional to 28,536.75, 42,819.84 and 12,746.61

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Solution

The fourth proportional to 28,536.75, 42,819.84 and 12,746.61 is: 19,126.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.75 : 42,819.84 = 12,746.61 : x
  2. Step 2: Convert to fraction form
    28,536.75/42,819.84 = 12,746.61/x
  3. Step 3: Cross multiply
    28,536.75x = 42,819.84 × 12,746.61
  4. Step 4: Simplify right side
    28,536.75x = 545,807,800.74
  5. Step 5: Solve for x
    x = 545,807,800.74/28,536.75
  6. Step 6: Final answer
    x = 19,126.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.