Home / 28,898.78-43,349.67-9,178.88

Finding the Fourth Proportional to 28,898.78, 43,349.67 and 9,178.88

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Solution

The fourth proportional to 28,898.78, 43,349.67 and 9,178.88 is: 13,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.78 : 43,349.67 = 9,178.88 : x
  2. Step 2: Convert to fraction form
    28,898.78/43,349.67 = 9,178.88/x
  3. Step 3: Cross multiply
    28,898.78x = 43,349.67 × 9,178.88
  4. Step 4: Simplify right side
    28,898.78x = 397,901,418.97
  5. Step 5: Solve for x
    x = 397,901,418.97/28,898.78
  6. Step 6: Final answer
    x = 13,768.80

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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.