Home / 28,074.24-42,120.96-12,502.72

Finding the Fourth Proportional to 28,074.24, 42,120.96 and 12,502.72

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Solution

The fourth proportional to 28,074.24, 42,120.96 and 12,502.72 is: 18,758.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074.24 : 42,120.96 = 12,502.72 : x
  2. Step 2: Convert to fraction form
    28,074.24/42,120.96 = 12,502.72/x
  3. Step 3: Cross multiply
    28,074.24x = 42,120.96 × 12,502.72
  4. Step 4: Simplify right side
    28,074.24x = 526,626,569.01
  5. Step 5: Solve for x
    x = 526,626,569.01/28,074.24
  6. Step 6: Final answer
    x = 18,758.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.