Home / 21,008.41-31,524.91-11,656.25

Finding the Fourth Proportional to 21,008.41, 31,524.91 and 11,656.25

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Solution

The fourth proportional to 21,008.41, 31,524.91 and 11,656.25 is: 17,491.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008.41 : 31,524.91 = 11,656.25 : x
  2. Step 2: Convert to fraction form
    21,008.41/31,524.91 = 11,656.25/x
  3. Step 3: Cross multiply
    21,008.41x = 31,524.91 × 11,656.25
  4. Step 4: Simplify right side
    21,008.41x = 367,462,045.42
  5. Step 5: Solve for x
    x = 367,462,045.42/21,008.41
  6. Step 6: Final answer
    x = 17,491.19

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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.