Home / 53,021.61-73,171.23-28,824.21

Finding the Fourth Proportional to 53,021.61, 73,171.23 and 28,824.21

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Solution

The fourth proportional to 53,021.61, 73,171.23 and 28,824.21 is: 39,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,021.61 : 73,171.23 = 28,824.21 : x
  2. Step 2: Convert to fraction form
    53,021.61/73,171.23 = 28,824.21/x
  3. Step 3: Cross multiply
    53,021.61x = 73,171.23 × 28,824.21
  4. Step 4: Simplify right side
    53,021.61x = 2,109,102,899.48
  5. Step 5: Solve for x
    x = 2,109,102,899.48/53,021.61
  6. Step 6: Final answer
    x = 39,778.18

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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.