Home / 28,981.80-43,460.55-9,255.06

Finding the Fourth Proportional to 28,981.80, 43,460.55 and 9,255.06

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Solution

The fourth proportional to 28,981.80, 43,460.55 and 9,255.06 is: 13,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981.80 : 43,460.55 = 9,255.06 : x
  2. Step 2: Convert to fraction form
    28,981.80/43,460.55 = 9,255.06/x
  3. Step 3: Cross multiply
    28,981.80x = 43,460.55 × 9,255.06
  4. Step 4: Simplify right side
    28,981.80x = 402,229,997.88
  5. Step 5: Solve for x
    x = 402,229,997.88/28,981.80
  6. Step 6: Final answer
    x = 13,878.71

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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.