Home / 28,965.97-39,941.49-25,155.51

Finding the Fourth Proportional to 28,965.97, 39,941.49 and 25,155.51

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Solution

The fourth proportional to 28,965.97, 39,941.49 and 25,155.51 is: 34,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965.97 : 39,941.49 = 25,155.51 : x
  2. Step 2: Convert to fraction form
    28,965.97/39,941.49 = 25,155.51/x
  3. Step 3: Cross multiply
    28,965.97x = 39,941.49 × 25,155.51
  4. Step 4: Simplify right side
    28,965.97x = 1,004,748,551.11
  5. Step 5: Solve for x
    x = 1,004,748,551.11/28,965.97
  6. Step 6: Final answer
    x = 34,687.21

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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.