Home / 21,398.04-29,527.92-11,964.96

Finding the Fourth Proportional to 21,398.04, 29,527.92 and 11,964.96

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Solution

The fourth proportional to 21,398.04, 29,527.92 and 11,964.96 is: 16,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398.04 : 29,527.92 = 11,964.96 : x
  2. Step 2: Convert to fraction form
    21,398.04/29,527.92 = 11,964.96/x
  3. Step 3: Cross multiply
    21,398.04x = 29,527.92 × 11,964.96
  4. Step 4: Simplify right side
    21,398.04x = 353,300,381.68
  5. Step 5: Solve for x
    x = 353,300,381.68/21,398.04
  6. Step 6: Final answer
    x = 16,510.88

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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.