Home / 20,446.48-30,650.28-13,030.12

Finding the Fourth Proportional to 20,446.48, 30,650.28 and 13,030.12

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Solution

The fourth proportional to 20,446.48, 30,650.28 and 13,030.12 is: 19,532.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.48 : 30,650.28 = 13,030.12 : x
  2. Step 2: Convert to fraction form
    20,446.48/30,650.28 = 13,030.12/x
  3. Step 3: Cross multiply
    20,446.48x = 30,650.28 × 13,030.12
  4. Step 4: Simplify right side
    20,446.48x = 399,376,826.43
  5. Step 5: Solve for x
    x = 399,376,826.43/20,446.48
  6. Step 6: Final answer
    x = 19,532.79

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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.