Home / 39,641.25-54,703.71-21,735.81

Finding the Fourth Proportional to 39,641.25, 54,703.71 and 21,735.81

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Solution

The fourth proportional to 39,641.25, 54,703.71 and 21,735.81 is: 29,994.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,641.25 : 54,703.71 = 21,735.81 : x
  2. Step 2: Convert to fraction form
    39,641.25/54,703.71 = 21,735.81/x
  3. Step 3: Cross multiply
    39,641.25x = 54,703.71 × 21,735.81
  4. Step 4: Simplify right side
    39,641.25x = 1,189,029,446.86
  5. Step 5: Solve for x
    x = 1,189,029,446.86/39,641.25
  6. Step 6: Final answer
    x = 29,994.75

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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.