Home / 20,506.32-30,749.76-10,635.72

Finding the Fourth Proportional to 20,506.32, 30,749.76 and 10,635.72

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Solution

The fourth proportional to 20,506.32, 30,749.76 and 10,635.72 is: 15,948.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.32 : 30,749.76 = 10,635.72 : x
  2. Step 2: Convert to fraction form
    20,506.32/30,749.76 = 10,635.72/x
  3. Step 3: Cross multiply
    20,506.32x = 30,749.76 × 10,635.72
  4. Step 4: Simplify right side
    20,506.32x = 327,045,837.43
  5. Step 5: Solve for x
    x = 327,045,837.43/20,506.32
  6. Step 6: Final answer
    x = 15,948.54

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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.