Home / 28,512.45-42,769.56-9,792.24

Finding the Fourth Proportional to 28,512.45, 42,769.56 and 9,792.24

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Solution

The fourth proportional to 28,512.45, 42,769.56 and 9,792.24 is: 14,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512.45 : 42,769.56 = 9,792.24 : x
  2. Step 2: Convert to fraction form
    28,512.45/42,769.56 = 9,792.24/x
  3. Step 3: Cross multiply
    28,512.45x = 42,769.56 × 9,792.24
  4. Step 4: Simplify right side
    28,512.45x = 418,809,796.21
  5. Step 5: Solve for x
    x = 418,809,796.21/28,512.45
  6. Step 6: Final answer
    x = 14,688.66

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1.5x scale

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.