Home / 47,678.67-65,792.21-28,294.25

Finding the Fourth Proportional to 47,678.67, 65,792.21 and 28,294.25

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Solution

The fourth proportional to 47,678.67, 65,792.21 and 28,294.25 is: 39,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,678.67 : 65,792.21 = 28,294.25 : x
  2. Step 2: Convert to fraction form
    47,678.67/65,792.21 = 28,294.25/x
  3. Step 3: Cross multiply
    47,678.67x = 65,792.21 × 28,294.25
  4. Step 4: Simplify right side
    47,678.67x = 1,861,540,767.36
  5. Step 5: Solve for x
    x = 1,861,540,767.36/47,678.67
  6. Step 6: Final answer
    x = 39,043.47

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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.