Home / 28,801.13-43,218.70-12,160.08

Finding the Fourth Proportional to 28,801.13, 43,218.70 and 12,160.08

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Solution

The fourth proportional to 28,801.13, 43,218.70 and 12,160.08 is: 18,247.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,801.13 : 43,218.70 = 12,160.08 : x
  2. Step 2: Convert to fraction form
    28,801.13/43,218.70 = 12,160.08/x
  3. Step 3: Cross multiply
    28,801.13x = 43,218.70 × 12,160.08
  4. Step 4: Simplify right side
    28,801.13x = 525,542,819.10
  5. Step 5: Solve for x
    x = 525,542,819.10/28,801.13
  6. Step 6: Final answer
    x = 18,247.30

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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.