Home / 39,975.84-55,215.72-29,949.12

Finding the Fourth Proportional to 39,975.84, 55,215.72 and 29,949.12

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Solution

The fourth proportional to 39,975.84, 55,215.72 and 29,949.12 is: 41,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975.84 : 55,215.72 = 29,949.12 : x
  2. Step 2: Convert to fraction form
    39,975.84/55,215.72 = 29,949.12/x
  3. Step 3: Cross multiply
    39,975.84x = 55,215.72 × 29,949.12
  4. Step 4: Simplify right side
    39,975.84x = 1,653,662,224.17
  5. Step 5: Solve for x
    x = 1,653,662,224.17/39,975.84
  6. Step 6: Final answer
    x = 41,366.54

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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.