Home / 28,575.22-39,433.76-15,999.97

Finding the Fourth Proportional to 28,575.22, 39,433.76 and 15,999.97

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Solution

The fourth proportional to 28,575.22, 39,433.76 and 15,999.97 is: 22,079.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,575.22 : 39,433.76 = 15,999.97 : x
  2. Step 2: Convert to fraction form
    28,575.22/39,433.76 = 15,999.97/x
  3. Step 3: Cross multiply
    28,575.22x = 39,433.76 × 15,999.97
  4. Step 4: Simplify right side
    28,575.22x = 630,938,976.99
  5. Step 5: Solve for x
    x = 630,938,976.99/28,575.22
  6. Step 6: Final answer
    x = 22,079.93

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1.5x scale

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.