Home / 39,460.91-54,457.25-21,556.80

Finding the Fourth Proportional to 39,460.91, 54,457.25 and 21,556.80

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Solution

The fourth proportional to 39,460.91, 54,457.25 and 21,556.80 is: 29,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,460.91 : 54,457.25 = 21,556.80 : x
  2. Step 2: Convert to fraction form
    39,460.91/54,457.25 = 21,556.80/x
  3. Step 3: Cross multiply
    39,460.91x = 54,457.25 × 21,556.80
  4. Step 4: Simplify right side
    39,460.91x = 1,173,923,939.02
  5. Step 5: Solve for x
    x = 1,173,923,939.02/39,460.91
  6. Step 6: Final answer
    x = 29,749.04

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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.