Home / 28,397.00-42,540.93-15,879.08

Finding the Fourth Proportional to 28,397.00, 42,540.93 and 15,879.08

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Solution

The fourth proportional to 28,397.00, 42,540.93 and 15,879.08 is: 23,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,397.00 : 42,540.93 = 15,879.08 : x
  2. Step 2: Convert to fraction form
    28,397.00/42,540.93 = 15,879.08/x
  3. Step 3: Cross multiply
    28,397.00x = 42,540.93 × 15,879.08
  4. Step 4: Simplify right side
    28,397.00x = 675,510,937.10
  5. Step 5: Solve for x
    x = 675,510,937.10/28,397.00
  6. Step 6: Final answer
    x = 23,788.11

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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.