Home / 39,246.39-54,161.04-21,342.45

Finding the Fourth Proportional to 39,246.39, 54,161.04 and 21,342.45

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Solution

The fourth proportional to 39,246.39, 54,161.04 and 21,342.45 is: 29,453.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,246.39 : 54,161.04 = 21,342.45 : x
  2. Step 2: Convert to fraction form
    39,246.39/54,161.04 = 21,342.45/x
  3. Step 3: Cross multiply
    39,246.39x = 54,161.04 × 21,342.45
  4. Step 4: Simplify right side
    39,246.39x = 1,155,929,288.15
  5. Step 5: Solve for x
    x = 1,155,929,288.15/39,246.39
  6. Step 6: Final answer
    x = 29,453.14

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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.