Home / 39,441.28-54,429.23-21,536.41

Finding the Fourth Proportional to 39,441.28, 54,429.23 and 21,536.41

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Solution

The fourth proportional to 39,441.28, 54,429.23 and 21,536.41 is: 29,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,441.28 : 54,429.23 = 21,536.41 : x
  2. Step 2: Convert to fraction form
    39,441.28/54,429.23 = 21,536.41/x
  3. Step 3: Cross multiply
    39,441.28x = 54,429.23 × 21,536.41
  4. Step 4: Simplify right side
    39,441.28x = 1,172,210,213.26
  5. Step 5: Solve for x
    x = 1,172,210,213.26/39,441.28
  6. Step 6: Final answer
    x = 29,720.39

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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.