Home / 20,506.72-30,764.19-7,360.12

Finding the Fourth Proportional to 20,506.72, 30,764.19 and 7,360.12

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Solution

The fourth proportional to 20,506.72, 30,764.19 and 7,360.12 is: 11,041.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.72 : 30,764.19 = 7,360.12 : x
  2. Step 2: Convert to fraction form
    20,506.72/30,764.19 = 7,360.12/x
  3. Step 3: Cross multiply
    20,506.72x = 30,764.19 × 7,360.12
  4. Step 4: Simplify right side
    20,506.72x = 226,428,130.10
  5. Step 5: Solve for x
    x = 226,428,130.10/20,506.72
  6. Step 6: Final answer
    x = 11,041.66

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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.