Home / 20,634.67-30,888.51-13,246.21

Finding the Fourth Proportional to 20,634.67, 30,888.51 and 13,246.21

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Solution

The fourth proportional to 20,634.67, 30,888.51 and 13,246.21 is: 19,828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.67 : 30,888.51 = 13,246.21 : x
  2. Step 2: Convert to fraction form
    20,634.67/30,888.51 = 13,246.21/x
  3. Step 3: Cross multiply
    20,634.67x = 30,888.51 × 13,246.21
  4. Step 4: Simplify right side
    20,634.67x = 409,155,690.05
  5. Step 5: Solve for x
    x = 409,155,690.05/20,634.67
  6. Step 6: Final answer
    x = 19,828.56

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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.