Home / 20,741.85-31,045.38-11,358.27

Finding the Fourth Proportional to 20,741.85, 31,045.38 and 11,358.27

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Solution

The fourth proportional to 20,741.85, 31,045.38 and 11,358.27 is: 17,000.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.85 : 31,045.38 = 11,358.27 : x
  2. Step 2: Convert to fraction form
    20,741.85/31,045.38 = 11,358.27/x
  3. Step 3: Cross multiply
    20,741.85x = 31,045.38 × 11,358.27
  4. Step 4: Simplify right side
    20,741.85x = 352,621,808.29
  5. Step 5: Solve for x
    x = 352,621,808.29/20,741.85
  6. Step 6: Final answer
    x = 17,000.50

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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.