Home / 21,538.04-29,723.12-11,846.99

Finding the Fourth Proportional to 21,538.04, 29,723.12 and 11,846.99

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Solution

The fourth proportional to 21,538.04, 29,723.12 and 11,846.99 is: 16,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538.04 : 29,723.12 = 11,846.99 : x
  2. Step 2: Convert to fraction form
    21,538.04/29,723.12 = 11,846.99/x
  3. Step 3: Cross multiply
    21,538.04x = 29,723.12 × 11,846.99
  4. Step 4: Simplify right side
    21,538.04x = 352,129,564.91
  5. Step 5: Solve for x
    x = 352,129,564.91/21,538.04
  6. Step 6: Final answer
    x = 16,349.20

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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.