Home / 15,720.35-23,559.68-11,540.81

Finding the Fourth Proportional to 15,720.35, 23,559.68 and 11,540.81

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Solution

The fourth proportional to 15,720.35, 23,559.68 and 11,540.81 is: 17,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.35 : 23,559.68 = 11,540.81 : x
  2. Step 2: Convert to fraction form
    15,720.35/23,559.68 = 11,540.81/x
  3. Step 3: Cross multiply
    15,720.35x = 23,559.68 × 11,540.81
  4. Step 4: Simplify right side
    15,720.35x = 271,897,878.29
  5. Step 5: Solve for x
    x = 271,897,878.29/15,720.35
  6. Step 6: Final answer
    x = 17,295.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.