Home / 28,567.36-39,422.96-15,992

Finding the Fourth Proportional to 28,567.36, 39,422.96 and 15,992

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Solution

The fourth proportional to 28,567.36, 39,422.96 and 15,992 is: 22,068.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,567.36 : 39,422.96 = 15,992 : x
  2. Step 2: Convert to fraction form
    28,567.36/39,422.96 = 15,992/x
  3. Step 3: Cross multiply
    28,567.36x = 39,422.96 × 15,992
  4. Step 4: Simplify right side
    28,567.36x = 630,451,976.32
  5. Step 5: Solve for x
    x = 630,451,976.32/28,567.36
  6. Step 6: Final answer
    x = 22,068.96

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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.