Home / 39,476.40-54,477.51-21,571.70

Finding the Fourth Proportional to 39,476.40, 54,477.51 and 21,571.70

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Solution

The fourth proportional to 39,476.40, 54,477.51 and 21,571.70 is: 29,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,476.40 : 54,477.51 = 21,571.70 : x
  2. Step 2: Convert to fraction form
    39,476.40/54,477.51 = 21,571.70/x
  3. Step 3: Cross multiply
    39,476.40x = 54,477.51 × 21,571.70
  4. Step 4: Simplify right side
    39,476.40x = 1,175,172,230.08
  5. Step 5: Solve for x
    x = 1,175,172,230.08/39,476.40
  6. Step 6: Final answer
    x = 29,768.98

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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.