Home / 39,457.62-54,449.93-21,553.25

Finding the Fourth Proportional to 39,457.62, 54,449.93 and 21,553.25

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Solution

The fourth proportional to 39,457.62, 54,449.93 and 21,553.25 is: 29,742.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,457.62 : 54,449.93 = 21,553.25 : x
  2. Step 2: Convert to fraction form
    39,457.62/54,449.93 = 21,553.25/x
  3. Step 3: Cross multiply
    39,457.62x = 54,449.93 × 21,553.25
  4. Step 4: Simplify right side
    39,457.62x = 1,173,572,735.41
  5. Step 5: Solve for x
    x = 1,173,572,735.41/39,457.62
  6. Step 6: Final answer
    x = 29,742.61

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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.