Home / 21,473.76-29,633.84-11,913.65

Finding the Fourth Proportional to 21,473.76, 29,633.84 and 11,913.65

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Solution

The fourth proportional to 21,473.76, 29,633.84 and 11,913.65 is: 16,440.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,473.76 : 29,633.84 = 11,913.65 : x
  2. Step 2: Convert to fraction form
    21,473.76/29,633.84 = 11,913.65/x
  3. Step 3: Cross multiply
    21,473.76x = 29,633.84 × 11,913.65
  4. Step 4: Simplify right side
    21,473.76x = 353,046,990.18
  5. Step 5: Solve for x
    x = 353,046,990.18/21,473.76
  6. Step 6: Final answer
    x = 16,440.86

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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.