Home / 30,514.53-42,112.40-17,771.69

Finding the Fourth Proportional to 30,514.53, 42,112.40 and 17,771.69

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Solution

The fourth proportional to 30,514.53, 42,112.40 and 17,771.69 is: 24,526.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,514.53 : 42,112.40 = 17,771.69 : x
  2. Step 2: Convert to fraction form
    30,514.53/42,112.40 = 17,771.69/x
  3. Step 3: Cross multiply
    30,514.53x = 42,112.40 × 17,771.69
  4. Step 4: Simplify right side
    30,514.53x = 748,408,218.54
  5. Step 5: Solve for x
    x = 748,408,218.54/30,514.53
  6. Step 6: Final answer
    x = 24,526.29

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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.