Home / 28,905.80-43,341.10-11,354.60

Finding the Fourth Proportional to 28,905.80, 43,341.10 and 11,354.60

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Solution

The fourth proportional to 28,905.80, 43,341.10 and 11,354.60 is: 17,024.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.80 : 43,341.10 = 11,354.60 : x
  2. Step 2: Convert to fraction form
    28,905.80/43,341.10 = 11,354.60/x
  3. Step 3: Cross multiply
    28,905.80x = 43,341.10 × 11,354.60
  4. Step 4: Simplify right side
    28,905.80x = 492,120,854.06
  5. Step 5: Solve for x
    x = 492,120,854.06/28,905.80
  6. Step 6: Final answer
    x = 17,024.99

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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.