Home / 39,476.28-54,475.65-21,571.89

Finding the Fourth Proportional to 39,476.28, 54,475.65 and 21,571.89

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Solution

The fourth proportional to 39,476.28, 54,475.65 and 21,571.89 is: 29,768.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,476.28 : 54,475.65 = 21,571.89 : x
  2. Step 2: Convert to fraction form
    39,476.28/54,475.65 = 21,571.89/x
  3. Step 3: Cross multiply
    39,476.28x = 54,475.65 × 21,571.89
  4. Step 4: Simplify right side
    39,476.28x = 1,175,142,729.48
  5. Step 5: Solve for x
    x = 1,175,142,729.48/39,476.28
  6. Step 6: Final answer
    x = 29,768.32

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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.