Home / 28,535.24-42,779.66-11,907.66

Finding the Fourth Proportional to 28,535.24, 42,779.66 and 11,907.66

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Solution

The fourth proportional to 28,535.24, 42,779.66 and 11,907.66 is: 17,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,535.24 : 42,779.66 = 11,907.66 : x
  2. Step 2: Convert to fraction form
    28,535.24/42,779.66 = 11,907.66/x
  3. Step 3: Cross multiply
    28,535.24x = 42,779.66 × 11,907.66
  4. Step 4: Simplify right side
    28,535.24x = 509,405,646.20
  5. Step 5: Solve for x
    x = 509,405,646.20/28,535.24
  6. Step 6: Final answer
    x = 17,851.81

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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.