Home / 39,358.44-54,315.21-21,453.44

Finding the Fourth Proportional to 39,358.44, 54,315.21 and 21,453.44

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Solution

The fourth proportional to 39,358.44, 54,315.21 and 21,453.44 is: 29,606.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,358.44 : 54,315.21 = 21,453.44 : x
  2. Step 2: Convert to fraction form
    39,358.44/54,315.21 = 21,453.44/x
  3. Step 3: Cross multiply
    39,358.44x = 54,315.21 × 21,453.44
  4. Step 4: Simplify right side
    39,358.44x = 1,165,248,423.51
  5. Step 5: Solve for x
    x = 1,165,248,423.51/39,358.44
  6. Step 6: Final answer
    x = 29,606.06

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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.