Home / 28,805.16-43,145.10-13,982.88

Finding the Fourth Proportional to 28,805.16, 43,145.10 and 13,982.88

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Solution

The fourth proportional to 28,805.16, 43,145.10 and 13,982.88 is: 20,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.16 : 43,145.10 = 13,982.88 : x
  2. Step 2: Convert to fraction form
    28,805.16/43,145.10 = 13,982.88/x
  3. Step 3: Cross multiply
    28,805.16x = 43,145.10 × 13,982.88
  4. Step 4: Simplify right side
    28,805.16x = 603,292,755.89
  5. Step 5: Solve for x
    x = 603,292,755.89/28,805.16
  6. Step 6: Final answer
    x = 20,943.91

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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.