Home / 21,748.49-30,011.49-12,794.26

Finding the Fourth Proportional to 21,748.49, 30,011.49 and 12,794.26

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Solution

The fourth proportional to 21,748.49, 30,011.49 and 12,794.26 is: 17,655.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748.49 : 30,011.49 = 12,794.26 : x
  2. Step 2: Convert to fraction form
    21,748.49/30,011.49 = 12,794.26/x
  3. Step 3: Cross multiply
    21,748.49x = 30,011.49 × 12,794.26
  4. Step 4: Simplify right side
    21,748.49x = 383,974,806.05
  5. Step 5: Solve for x
    x = 383,974,806.05/21,748.49
  6. Step 6: Final answer
    x = 17,655.24

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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.