Home / 39,400.06-54,371.57-21,494.69

Finding the Fourth Proportional to 39,400.06, 54,371.57 and 21,494.69

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Solution

The fourth proportional to 39,400.06, 54,371.57 and 21,494.69 is: 29,662.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,400.06 : 54,371.57 = 21,494.69 : x
  2. Step 2: Convert to fraction form
    39,400.06/54,371.57 = 21,494.69/x
  3. Step 3: Cross multiply
    39,400.06x = 54,371.57 × 21,494.69
  4. Step 4: Simplify right side
    39,400.06x = 1,168,700,041.96
  5. Step 5: Solve for x
    x = 1,168,700,041.96/39,400.06
  6. Step 6: Final answer
    x = 29,662.39

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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.