Home / 21,748.26-30,011.68-12,674.48

Finding the Fourth Proportional to 21,748.26, 30,011.68 and 12,674.48

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Solution

The fourth proportional to 21,748.26, 30,011.68 and 12,674.48 is: 17,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748.26 : 30,011.68 = 12,674.48 : x
  2. Step 2: Convert to fraction form
    21,748.26/30,011.68 = 12,674.48/x
  3. Step 3: Cross multiply
    21,748.26x = 30,011.68 × 12,674.48
  4. Step 4: Simplify right side
    21,748.26x = 380,382,437.93
  5. Step 5: Solve for x
    x = 380,382,437.93/21,748.26
  6. Step 6: Final answer
    x = 17,490.25

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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.