Home / 39,421.50-54,401.70-29,358.60

Finding the Fourth Proportional to 39,421.50, 54,401.70 and 29,358.60

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Solution

The fourth proportional to 39,421.50, 54,401.70 and 29,358.60 is: 40,514.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,421.50 : 54,401.70 = 29,358.60 : x
  2. Step 2: Convert to fraction form
    39,421.50/54,401.70 = 29,358.60/x
  3. Step 3: Cross multiply
    39,421.50x = 54,401.70 × 29,358.60
  4. Step 4: Simplify right side
    39,421.50x = 1,597,157,749.62
  5. Step 5: Solve for x
    x = 1,597,157,749.62/39,421.50
  6. Step 6: Final answer
    x = 40,514.89

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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.