Home / 39,354.67-54,309.71-21,449.62

Finding the Fourth Proportional to 39,354.67, 54,309.71 and 21,449.62

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Solution

The fourth proportional to 39,354.67, 54,309.71 and 21,449.62 is: 29,600.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,354.67 : 54,309.71 = 21,449.62 : x
  2. Step 2: Convert to fraction form
    39,354.67/54,309.71 = 21,449.62/x
  3. Step 3: Cross multiply
    39,354.67x = 54,309.71 × 21,449.62
  4. Step 4: Simplify right side
    39,354.67x = 1,164,922,641.81
  5. Step 5: Solve for x
    x = 1,164,922,641.81/39,354.67
  6. Step 6: Final answer
    x = 29,600.62

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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.