Home / 21,633.13-29,846.73-12,071.47

Finding the Fourth Proportional to 21,633.13, 29,846.73 and 12,071.47

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Solution

The fourth proportional to 21,633.13, 29,846.73 and 12,071.47 is: 16,654.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,633.13 : 29,846.73 = 12,071.47 : x
  2. Step 2: Convert to fraction form
    21,633.13/29,846.73 = 12,071.47/x
  3. Step 3: Cross multiply
    21,633.13x = 29,846.73 × 12,071.47
  4. Step 4: Simplify right side
    21,633.13x = 360,293,905.79
  5. Step 5: Solve for x
    x = 360,293,905.79/21,633.13
  6. Step 6: Final answer
    x = 16,654.73

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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.