Home / 21,447.74-29,598.97-11,888.64

Finding the Fourth Proportional to 21,447.74, 29,598.97 and 11,888.64

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Solution

The fourth proportional to 21,447.74, 29,598.97 and 11,888.64 is: 16,406.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.74 : 29,598.97 = 11,888.64 : x
  2. Step 2: Convert to fraction form
    21,447.74/29,598.97 = 11,888.64/x
  3. Step 3: Cross multiply
    21,447.74x = 29,598.97 × 11,888.64
  4. Step 4: Simplify right side
    21,447.74x = 351,891,491.27
  5. Step 5: Solve for x
    x = 351,891,491.27/21,447.74
  6. Step 6: Final answer
    x = 16,406.93

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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.