Home / 28,726.87-43,107.17-12,085.63

Finding the Fourth Proportional to 28,726.87, 43,107.17 and 12,085.63

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Solution

The fourth proportional to 28,726.87, 43,107.17 and 12,085.63 is: 18,135.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.87 : 43,107.17 = 12,085.63 : x
  2. Step 2: Convert to fraction form
    28,726.87/43,107.17 = 12,085.63/x
  3. Step 3: Cross multiply
    28,726.87x = 43,107.17 × 12,085.63
  4. Step 4: Simplify right side
    28,726.87x = 520,977,306.97
  5. Step 5: Solve for x
    x = 520,977,306.97/28,726.87
  6. Step 6: Final answer
    x = 18,135.54

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1.5x scale

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.