Home / 21,592.65-29,797.16-13,209.15

Finding the Fourth Proportional to 21,592.65, 29,797.16 and 13,209.15

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Solution

The fourth proportional to 21,592.65, 29,797.16 and 13,209.15 is: 18,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,592.65 : 29,797.16 = 13,209.15 : x
  2. Step 2: Convert to fraction form
    21,592.65/29,797.16 = 13,209.15/x
  3. Step 3: Cross multiply
    21,592.65x = 29,797.16 × 13,209.15
  4. Step 4: Simplify right side
    21,592.65x = 393,595,089.97
  5. Step 5: Solve for x
    x = 393,595,089.97/21,592.65
  6. Step 6: Final answer
    x = 18,228.20

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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.