Home / 28,755.90-43,121.70-9,029.16

Finding the Fourth Proportional to 28,755.90, 43,121.70 and 9,029.16

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Solution

The fourth proportional to 28,755.90, 43,121.70 and 9,029.16 is: 13,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.90 : 43,121.70 = 9,029.16 : x
  2. Step 2: Convert to fraction form
    28,755.90/43,121.70 = 9,029.16/x
  3. Step 3: Cross multiply
    28,755.90x = 43,121.70 × 9,029.16
  4. Step 4: Simplify right side
    28,755.90x = 389,352,728.77
  5. Step 5: Solve for x
    x = 389,352,728.77/28,755.90
  6. Step 6: Final answer
    x = 13,539.92

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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.