Home / 28,960.20-43,505.10-27,779.40

Finding the Fourth Proportional to 28,960.20, 43,505.10 and 27,779.40

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Solution

The fourth proportional to 28,960.20, 43,505.10 and 27,779.40 is: 41,731.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.20 : 43,505.10 = 27,779.40 : x
  2. Step 2: Convert to fraction form
    28,960.20/43,505.10 = 27,779.40/x
  3. Step 3: Cross multiply
    28,960.20x = 43,505.10 × 27,779.40
  4. Step 4: Simplify right side
    28,960.20x = 1,208,545,574.94
  5. Step 5: Solve for x
    x = 1,208,545,574.94/28,960.20
  6. Step 6: Final answer
    x = 41,731.26

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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.