Home / 25,205.16-34,779.06-15,132

Finding the Fourth Proportional to 25,205.16, 34,779.06 and 15,132

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Solution

The fourth proportional to 25,205.16, 34,779.06 and 15,132 is: 20,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,205.16 : 34,779.06 = 15,132 : x
  2. Step 2: Convert to fraction form
    25,205.16/34,779.06 = 15,132/x
  3. Step 3: Cross multiply
    25,205.16x = 34,779.06 × 15,132
  4. Step 4: Simplify right side
    25,205.16x = 526,276,735.92
  5. Step 5: Solve for x
    x = 526,276,735.92/25,205.16
  6. Step 6: Final answer
    x = 20,879.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.