Home / 28,572.84-39,430.44-15,997.56

Finding the Fourth Proportional to 28,572.84, 39,430.44 and 15,997.56

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Solution

The fourth proportional to 28,572.84, 39,430.44 and 15,997.56 is: 22,076.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,572.84 : 39,430.44 = 15,997.56 : x
  2. Step 2: Convert to fraction form
    28,572.84/39,430.44 = 15,997.56/x
  3. Step 3: Cross multiply
    28,572.84x = 39,430.44 × 15,997.56
  4. Step 4: Simplify right side
    28,572.84x = 630,790,829.73
  5. Step 5: Solve for x
    x = 630,790,829.73/28,572.84
  6. Step 6: Final answer
    x = 22,076.59

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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.