Home / 21,776.88-30,050.40-12,346.96

Finding the Fourth Proportional to 21,776.88, 30,050.40 and 12,346.96

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Solution

The fourth proportional to 21,776.88, 30,050.40 and 12,346.96 is: 17,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.88 : 30,050.40 = 12,346.96 : x
  2. Step 2: Convert to fraction form
    21,776.88/30,050.40 = 12,346.96/x
  3. Step 3: Cross multiply
    21,776.88x = 30,050.40 × 12,346.96
  4. Step 4: Simplify right side
    21,776.88x = 371,031,086.78
  5. Step 5: Solve for x
    x = 371,031,086.78/21,776.88
  6. Step 6: Final answer
    x = 17,037.84

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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.