Home / 21,609.89-29,833.41-14,931.47

Finding the Fourth Proportional to 21,609.89, 29,833.41 and 14,931.47

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Solution

The fourth proportional to 21,609.89, 29,833.41 and 14,931.47 is: 20,613.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.89 : 29,833.41 = 14,931.47 : x
  2. Step 2: Convert to fraction form
    21,609.89/29,833.41 = 14,931.47/x
  3. Step 3: Cross multiply
    21,609.89x = 29,833.41 × 14,931.47
  4. Step 4: Simplify right side
    21,609.89x = 445,456,796.99
  5. Step 5: Solve for x
    x = 445,456,796.99/21,609.89
  6. Step 6: Final answer
    x = 20,613.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.